76725615556 has 12 divisors (see below), whose sum is σ = 134273999020. Its totient is φ = 38361615840.

The previous prime is 76725615523. The next prime is 76725615559. The reversal of 76725615556 is 65551652767.

It can be written as a sum of positive squares in 2 ways, for example, as 33843489156 + 42882126400 = 183966^2 + 207080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76725615497 and 76725615506.

It is not an unprimeable number, because it can be changed into a prime (76725615559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144351 + ... + 417478.

Almost surely, 2^76725615556 is an apocalyptic number.

It is an amenable number.

76725615556 is a deficient number, since it is larger than the sum of its proper divisors (57548383464).

76725615556 is a wasteful number, since it uses less digits than its factorization.

76725615556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595974 (or 595972 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 55.

The spelling of 76725615556 in words is "seventy-six billion, seven hundred twenty-five million, six hundred fifteen thousand, five hundred fifty-six".