82125361928 has 32 divisors (see below), whose sum is σ = 163180143000. Its totient is φ = 38679728640.

The previous prime is 82125361847. The next prime is 82125361937. The reversal of 82125361928 is 82916352128.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75626100004 + 6499261924 = 275002^2 + 80618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4307423 + ... + 4326446.

Almost surely, 2^82125361928 is an apocalyptic number.

It is an amenable number.

82125361928 is a deficient number, since it is larger than the sum of its proper divisors (81054781072).

82125361928 is a wasteful number, since it uses less digits than its factorization.

82125361928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633945 (or 8633941 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The spelling of 82125361928 in words is "eighty-two billion, one hundred twenty-five million, three hundred sixty-one thousand, nine hundred twenty-eight".