1957742139000 has 64 divisors (see below), whose sum is σ = 6108155483040. Its totient is φ = 522064569600.

The previous prime is 1957742138941. The next prime is 1957742139007. The reversal of 1957742139000 is 9312477591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957742139007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326287357 + ... + 326293356.

Almost surely, 2^{1957742139000} is an apocalyptic number.

1957742139000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1957742139000 is an abundant number, since it is smaller than the sum of its proper divisors (4150413344040).

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

1957742139000 is a wasteful number, since it uses less digits than its factorization.

1957742139000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652580737 (or 652580723 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The spelling of 1957742139000 in words is "one trillion, nine hundred fifty-seven billion, seven hundred forty-two million, one hundred thirty-nine thousand".