76577989881 has 8 divisors (see below), whose sum is σ = 102347673120. Its totient is φ = 50930149952.

The previous prime is 76577989879. The next prime is 76577989903. The reversal of 76577989881 is 18898977567.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76577989881 - 2¹ = 76577989879 is a prime.

It is a super-2 number, since 2×76577989881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76577989801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30459360 + ... + 30461873.

It is an arithmetic number, because the mean of its divisors is an integer number (12793459140).

Almost surely, 2^76577989881 is an apocalyptic number.

It is an amenable number.

76577989881 is a deficient number, since it is larger than the sum of its proper divisors (25769683239).

76577989881 is a wasteful number, since it uses less digits than its factorization.

76577989881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60921655.

The product of its digits is 426746880, while the sum is 75.

The spelling of 76577989881 in words is "seventy-six billion, five hundred seventy-seven million, nine hundred eighty-nine thousand, eight hundred eighty-one".