1290911840512 has 72 divisors (see below), whose sum is σ = 3099887067200. Its totient is φ = 524129605632.

The previous prime is 1290911840483. The next prime is 1290911840551. The reversal of 1290911840512 is 2150481190921.

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, 18923187 + ... + 18991282.

Almost surely, 2^{1290911840512} is an apocalyptic number.

It is an amenable number.

1290911840512 is an abundant number, since it is smaller than the sum of its proper divisors (1808975226688).

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

1290911840512 is an equidigital number, since it uses as much as digits as its factorization.

1290911840512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37914511 (or 37914497 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The spelling of 1290911840512 in words is "one trillion, two hundred ninety billion, nine hundred eleven million, eight hundred forty thousand, five hundred twelve".