83403722730438 has 32 divisors (see below), whose sum is σ = 202190842984320. Its totient is φ = 25273855372680.

The previous prime is 83403722730431. The next prime is 83403722730457.

It is a happy number.

83403722730438 is a `hidden beast` number, since 8 + 3 + 403 + 7 + 227 + 3 + 0 + 4 + 3 + 8 = 666.

83403722730438 is nontrivially palindromic in base 10.

83403722730438 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83403722730431) 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, 70205153220 + ... + 70205154407.

It is an arithmetic number, because the mean of its divisors is an integer number (6318463843260).

Almost surely, 2^{83403722730438} is an apocalyptic number.

83403722730438 is an abundant number, since it is smaller than the sum of its proper divisors (118787120253882).

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

83403722730438 is a wasteful number, since it uses less digits than its factorization.

83403722730438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140410307649 (or 140410307643 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 54.

The spelling of 83403722730438 in words is "eighty-three trillion, four hundred three billion, seven hundred twenty-two million, seven hundred thirty thousand, four hundred thirty-eight".