975639777682 has 8 divisors (see below), whose sum is σ = 1465634199996. Its totient is φ = 487095044352.

The previous prime is 975639777661. The next prime is 975639777691. The reversal of 975639777682 is 286777936579.

It can be written as a sum of positive squares in 2 ways, for example, as 962947727401 + 12692050281 = 981299^2 + 112659^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 975639777599 and 975639777608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362420563 + ... + 362423254.

Almost surely, 2^975639777682 is an apocalyptic number.

975639777682 is a deficient number, since it is larger than the sum of its proper divisors (489994422314).

975639777682 is a wasteful number, since it uses less digits than its factorization.

975639777682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724844492.

The product of its digits is 1680315840, while the sum is 76.

The spelling of 975639777682 in words is "nine hundred seventy-five billion, six hundred thirty-nine million, seven hundred seventy-seven thousand, six hundred eighty-two".