1297441686144 has 64 divisors (see below), whose sum is σ = 3446448403680. Its totient is φ = 432465638400.

The previous prime is 1297441686137. The next prime is 1297441686161. The reversal of 1297441686144 is 4416861447921.

It is a tau number, because it is divible by the number of its divisors (64).

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, 20651259 + ... + 20713989.

Almost surely, 2^{1297441686144} is an apocalyptic number.

It is an amenable number.

1297441686144 is an abundant number, since it is smaller than the sum of its proper divisors (2149006717536).

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

1297441686144 is an equidigital number, since it uses as much as digits as its factorization.

1297441686144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116609 (or 116597 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 1297441686144 in words is "one trillion, two hundred ninety-seven billion, four hundred forty-one million, six hundred eighty-six thousand, one hundred forty-four".