23489919810 has 160 divisors (see below), whose sum is σ = 72356993280. Its totient is φ = 5356326528.

The previous prime is 23489919809. The next prime is 23489919823. The reversal of 23489919810 is 1891998432.

It is a super-2 number, since 2×23489919810² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2484412 + ... + 2493848.

It is an arithmetic number, because the mean of its divisors is an integer number (452231208).

Almost surely, 2^23489919810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23489919810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36178496640).

23489919810 is an abundant number, since it is smaller than the sum of its proper divisors (48867073470).

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

23489919810 is a wasteful number, since it uses less digits than its factorization.

23489919810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902 (or 9893 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 23489919810 in words is "twenty-three billion, four hundred eighty-nine million, nine hundred nineteen thousand, eight hundred ten".