76890495057 has 4 divisors (see below), whose sum is σ = 102520660080. Its totient is φ = 51260330036.

The previous prime is 76890495037. The next prime is 76890495079. The reversal of 76890495057 is 75059409867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76890495057 - 2¹² = 76890490961 is a prime.

It is a super-2 number, since 2×76890495057² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76890495037) 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, 12815082507 + ... + 12815082512.

It is an arithmetic number, because the mean of its divisors is an integer number (25630165020).

Almost surely, 2^76890495057 is an apocalyptic number.

It is an amenable number.

76890495057 is a deficient number, since it is larger than the sum of its proper divisors (25630165023).

76890495057 is a wasteful number, since it uses less digits than its factorization.

76890495057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25630165022.

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 76890495057 in words is "seventy-six billion, eight hundred ninety million, four hundred ninety-five thousand, fifty-seven".