76728464116 has 6 divisors (see below), whose sum is σ = 134274812210. Its totient is φ = 38364232056.

The previous prime is 76728464107. The next prime is 76728464143. The reversal of 76728464116 is 61146482767.

It can be written as a sum of positive squares in only one way, i.e., 76093222500 + 635241616 = 275850^2 + 25204^2 .

It is a super-2 number, since 2×76728464116² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9591058011 + ... + 9591058018.

Almost surely, 2^76728464116 is an apocalyptic number.

It is an amenable number.

76728464116 is a deficient number, since it is larger than the sum of its proper divisors (57546348094).

76728464116 is a wasteful number, since it uses less digits than its factorization.

76728464116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19182116033 (or 19182116031 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The spelling of 76728464116 in words is "seventy-six billion, seven hundred twenty-eight million, four hundred sixty-four thousand, one hundred sixteen".