957796977981 has 8 divisors (see below), whose sum is σ = 1278061127680. Its totient is φ = 638032073472.

The previous prime is 957796977967. The next prime is 957796978001. The reversal of 957796977981 is 189779697759.

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

It is not a de Polignac number, because 957796977981 - 2²⁷ = 957662760253 is a prime.

It is a super-2 number, since 2×957796977981² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 957796977894 and 957796977903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957796977901) 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 7 ways as a sum of consecutive naturals, for example, 124806820 + ... + 124814493.

It is an arithmetic number, because the mean of its divisors is an integer number (159757640960).

Almost surely, 2^957796977981 is an apocalyptic number.

It is an amenable number.

957796977981 is a deficient number, since it is larger than the sum of its proper divisors (320264149699).

957796977981 is a wasteful number, since it uses less digits than its factorization.

957796977981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249622595.

The product of its digits is 3780710640, while the sum is 84.

The spelling of 957796977981 in words is "nine hundred fifty-seven billion, seven hundred ninety-six million, nine hundred seventy-seven thousand, nine hundred eighty-one".