1957898437474 has 64 divisors (see below), whose sum is σ = 3588572401920. Its totient is φ = 782029209600.

The previous prime is 1957898437421. The next prime is 1957898437487. The reversal of 1957898437474 is 4747348987591.

It is a self number, because there is not a number n which added to its sum of digits gives 1957898437474.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45299074 + ... + 45342274.

It is an arithmetic number, because the mean of its divisors is an integer number (56071443780).

Almost surely, 2^{1957898437474} is an apocalyptic number.

1957898437474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1957898437474 is a deficient number, since it is larger than the sum of its proper divisors (1630673964446).

1957898437474 is a wasteful number, since it uses less digits than its factorization.

1957898437474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45083.

The product of its digits is 1706987520, while the sum is 76.

The spelling of 1957898437474 in words is "one trillion, nine hundred fifty-seven billion, eight hundred ninety-eight million, four hundred thirty-seven thousand, four hundred seventy-four".