76064385618 has 36 divisors (see below), whose sum is σ = 178458758010. Its totient is φ = 23404425408.

The previous prime is 76064385613. The next prime is 76064385619. The reversal of 76064385618 is 81658346067.

76064385618 is a `hidden beast` number, since 76 + 0 + 6 + 4 + 3 + 8 + 561 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 40895759529 + 35168626089 = 202227^2 + 187533^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76064385613) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12499323 + ... + 12505406.

Almost surely, 2^76064385618 is an apocalyptic number.

76064385618 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

76064385618 is an abundant number, since it is smaller than the sum of its proper divisors (102394372392).

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

76064385618 is a wasteful number, since it uses less digits than its factorization.

76064385618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004763 (or 25004747 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 76064385618 in words is "seventy-six billion, sixty-four million, three hundred eighty-five thousand, six hundred eighteen".