961791743957 has 8 divisors (see below), whose sum is σ = 1104449849760. Its totient is φ = 828337386960.

The previous prime is 961791743911. The next prime is 961791743959. The reversal of 961791743957 is 759347197169.

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 961791743957 - 2⁸ = 961791743701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961791743959) 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, 2300936978 + ... + 2300937395.

It is an arithmetic number, because the mean of its divisors is an integer number (138056231220).

Almost surely, 2^961791743957 is an apocalyptic number.

It is an amenable number.

961791743957 is a deficient number, since it is larger than the sum of its proper divisors (142658105803).

961791743957 is a wasteful number, since it uses less digits than its factorization.

961791743957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601874403.

The product of its digits is 90016920, while the sum is 68.

The spelling of 961791743957 in words is "nine hundred sixty-one billion, seven hundred ninety-one million, seven hundred forty-three thousand, nine hundred fifty-seven".