82731965428 has 24 divisors (see below), whose sum is σ = 169311931712. Its totient is φ = 34631985024.

The previous prime is 82731965423. The next prime is 82731965443. The reversal of 82731965428 is 82456913728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82731965423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34355925 + ... + 34358332.

Almost surely, 2^82731965428 is an apocalyptic number.

It is an amenable number.

82731965428 is an abundant number, since it is smaller than the sum of its proper divisors (86579966284).

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

82731965428 is a wasteful number, since it uses less digits than its factorization.

82731965428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68714311 (or 68714309 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 82731965428 in words is "eighty-two billion, seven hundred thirty-one million, nine hundred sixty-five thousand, four hundred twenty-eight".