45631173312 has 112 divisors (see below), whose sum is σ = 135002442720. Its totient is φ = 15113419776.

The previous prime is 45631173307. The next prime is 45631173317. The reversal of 45631173312 is 21337113654.

45631173312 is a `hidden beast` number, since 4 + 5 + 6 + 311 + 7 + 331 + 2 = 666.

45631173312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45631173307) and next prime (45631173317).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (45631173317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187198 + ... + 355394.

Almost surely, 2^45631173312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45631173312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67501221360).

45631173312 is an abundant number, since it is smaller than the sum of its proper divisors (89371269408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45631173312 is a wasteful number, since it uses less digits than its factorization.

45631173312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168375 (or 168359 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

Adding to 45631173312 its reverse (21337113654), we get a palindrome (66968286966).

The spelling of 45631173312 in words is "forty-five billion, six hundred thirty-one million, one hundred seventy-three thousand, three hundred twelve".