76881618867 has 16 divisors (see below), whose sum is σ = 110820354560. Its totient is φ = 47244464352.

The previous prime is 76881618857. The next prime is 76881618881.

It is a happy number.

76881618867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 76881618867 - 2⁷ = 76881618739 is a prime.

It is a super-2 number, since 2×76881618867² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76881618798 and 76881618807.

It is not an unprimeable number, because it can be changed into a prime (76881618857) 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, 18224923 + ... + 18229140.

It is an arithmetic number, because the mean of its divisors is an integer number (6926272160).

Almost surely, 2^76881618867 is an apocalyptic number.

76881618867 is a deficient number, since it is larger than the sum of its proper divisors (33938735693).

76881618867 is a wasteful number, since it uses less digits than its factorization.

76881618867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36454122.

The product of its digits is 43352064, while the sum is 66.

The spelling of 76881618867 in words is "seventy-six billion, eight hundred eighty-one million, six hundred eighteen thousand, eight hundred sixty-seven".