1957345506 has 32 divisors (see below), whose sum is σ = 4359026880. Its totient is φ = 651043008.

The previous prime is 1957345499. The next prime is 1957345531. The reversal of 1957345506 is 6055437591.

1957345506 is a `hidden beast` number, since 1 + 95 + 7 + 3 + 4 + 550 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13591 + ... + 64026.

It is an arithmetic number, because the mean of its divisors is an integer number (136219590).

Almost surely, 2^1957345506 is an apocalyptic number.

1957345506 is an abundant number, since it is smaller than the sum of its proper divisors (2401681374).

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

1957345506 is a wasteful number, since it uses less digits than its factorization.

1957345506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78095 (or 78089 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 1957345506 is about 44241.8976310917. The cubic root of 1957345506 is about 1250.8997268512.

The spelling of 1957345506 in words is "one billion, nine hundred fifty-seven million, three hundred forty-five thousand, five hundred six".