961304400957 has 4 divisors (see below), whose sum is σ = 1281739201280. Its totient is φ = 640869600636.

The previous prime is 961304400919. The next prime is 961304401069. The reversal of 961304400957 is 759004403169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 759004403169 = 3 ⋅253001467723.

It is not a de Polignac number, because 961304400957 - 2⁷ = 961304400829 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 (961304400907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160217400157 + ... + 160217400162.

It is an arithmetic number, because the mean of its divisors is an integer number (320434800320).

Almost surely, 2^961304400957 is an apocalyptic number.

It is an amenable number.

961304400957 is a deficient number, since it is larger than the sum of its proper divisors (320434800323).

961304400957 is a wasteful number, since it uses less digits than its factorization.

961304400957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320434800322.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 961304400957 in words is "nine hundred sixty-one billion, three hundred four million, four hundred thousand, nine hundred fifty-seven".