1957121875 has 24 divisors (see below), whose sum is σ = 2455999056. Its totient is φ = 1559460000.

The previous prime is 1957121843. The next prime is 1957121891. The reversal of 1957121875 is 5781217591.

It is not a de Polignac number, because 1957121875 - 2⁵ = 1957121843 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 883269 + ... + 885481.

It is an arithmetic number, because the mean of its divisors is an integer number (102333294).

Almost surely, 2^1957121875 is an apocalyptic number.

1957121875 is a deficient number, since it is larger than the sum of its proper divisors (498877181).

1957121875 is an frugal number, since it uses more digits than its factorization.

1957121875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2501 counting only the distinct ones).

The product of its digits is 176400, while the sum is 46.

The square root of 1957121875 is about 44239.3701921716. The cubic root of 1957121875 is about 1250.8520856947.

The spelling of 1957121875 in words is "one billion, nine hundred fifty-seven million, one hundred twenty-one thousand, eight hundred seventy-five".