76887445857 has 16 divisors (see below), whose sum is σ = 103633438272. Its totient is φ = 50700487680.

The previous prime is 76887445853. The next prime is 76887445879. The reversal of 76887445857 is 75854478867.

It is not a de Polignac number, because 76887445857 - 2² = 76887445853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76887445791 and 76887445800.

It is not an unprimeable number, because it can be changed into a prime (76887445853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432757 + ... + 583997.

It is an arithmetic number, because the mean of its divisors is an integer number (6477089892).

Almost surely, 2^76887445857 is an apocalyptic number.

It is an amenable number.

76887445857 is a deficient number, since it is larger than the sum of its proper divisors (26745992415).

76887445857 is a wasteful number, since it uses less digits than its factorization.

76887445857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153088.

The product of its digits is 421478400, while the sum is 69.

The spelling of 76887445857 in words is "seventy-six billion, eight hundred eighty-seven million, four hundred forty-five thousand, eight hundred fifty-seven".