969879978969 has 64 divisors (see below), whose sum is σ = 1435373049600. Its totient is φ = 577639296000.

The previous prime is 969879978943. The next prime is 969879978971.

It is a happy number.

969879978969 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 969879978969 - 2⁷ = 969879978841 is a prime.

It is a super-2 number, since 2×969879978969² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (969879978929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 478007847 + ... + 478009875.

It is an arithmetic number, because the mean of its divisors is an integer number (22427703900).

Almost surely, 2^969879978969 is an apocalyptic number.

It is an amenable number.

969879978969 is a deficient number, since it is larger than the sum of its proper divisors (465493070631).

969879978969 is a wasteful number, since it uses less digits than its factorization.

969879978969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146.

The product of its digits is 59997563136, while the sum is 96.

The spelling of 969879978969 in words is "nine hundred sixty-nine billion, eight hundred seventy-nine million, nine hundred seventy-eight thousand, nine hundred sixty-nine".