1957164897 has 16 divisors (see below), whose sum is σ = 2634287040. Its totient is φ = 1292452800.

The previous prime is 1957164887. The next prime is 1957164917. The reversal of 1957164897 is 7984617591.

It is not a de Polignac number, because 1957164897 - 2⁸ = 1957164641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1957164857) 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 15 ways as a sum of consecutive naturals, for example, 187147 + ... + 197327.

It is an arithmetic number, because the mean of its divisors is an integer number (164642940).

Almost surely, 2^1957164897 is an apocalyptic number.

It is an amenable number.

1957164897 is a deficient number, since it is larger than the sum of its proper divisors (677122143).

1957164897 is a wasteful number, since it uses less digits than its factorization.

1957164897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10784.

The product of its digits is 3810240, while the sum is 57.

The square root of 1957164897 is about 44239.8564305989. The cubic root of 1957164897 is about 1250.8612511542.

The spelling of 1957164897 in words is "one billion, nine hundred fifty-seven million, one hundred sixty-four thousand, eight hundred ninety-seven".