1957196085648 has 80 divisors (see below), whose sum is σ = 5209123350720. Its totient is φ = 632763698688.

The previous prime is 1957196085589. The next prime is 1957196085709. The reversal of 1957196085648 is 8465806917591.

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, 1175218 + ... + 2301201.

It is an arithmetic number, because the mean of its divisors is an integer number (65114041884).

Almost surely, 2^{1957196085648} is an apocalyptic number.

It is an amenable number.

1957196085648 is an abundant number, since it is smaller than the sum of its proper divisors (3251927265072).

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

1957196085648 is a wasteful number, since it uses less digits than its factorization.

1957196085648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476784 (or 3476778 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 69.

The spelling of 1957196085648 in words is "one trillion, nine hundred fifty-seven billion, one hundred ninety-six million, eighty-five thousand, six hundred forty-eight".