1957356128 has 48 divisors (see below), whose sum is σ = 4742831520. Its totient is φ = 774337536.

The previous prime is 1957356109. The next prime is 1957356169. The reversal of 1957356128 is 8216537591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333173 + ... + 338996.

It is an arithmetic number, because the mean of its divisors is an integer number (98808990).

Almost surely, 2^1957356128 is an apocalyptic number.

It is an amenable number.

1957356128 is an abundant number, since it is smaller than the sum of its proper divisors (2785475392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1957356128 is a wasteful number, since it uses less digits than its factorization.

1957356128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672199 (or 672191 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 1957356128 is about 44242.0176755084. The cubic root of 1957356128 is about 1250.9019896152.

The spelling of 1957356128 in words is "one billion, nine hundred fifty-seven million, three hundred fifty-six thousand, one hundred twenty-eight".