957542991 has 12 divisors (see below), whose sum is σ = 1294979736. Its totient is φ = 629361040.

The previous prime is 957542953. The next prime is 957543001. The reversal of 957542991 is 199245759.

It is not a de Polignac number, because 957542991 - 2⁹ = 957542479 is a prime.

It is a super-2 number, since 2×957542991² = 1833777159226452162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957542921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16536 + ... + 46781.

It is an arithmetic number, because the mean of its divisors is an integer number (107914978).

Almost surely, 2^957542991 is an apocalyptic number.

957542991 is a deficient number, since it is larger than the sum of its proper divisors (337436745).

957542991 is an equidigital number, since it uses as much as digits as its factorization.

957542991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63462 (or 63391 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 51.

The square root of 957542991 is about 30944.1915551206. The cubic root of 957542991 is about 985.6425127655.

The spelling of 957542991 in words is "nine hundred fifty-seven million, five hundred forty-two thousand, nine hundred ninety-one".