1297113635408 has 40 divisors (see below), whose sum is σ = 2523555044640. Its totient is φ = 645874416000.

The previous prime is 1297113635387. The next prime is 1297113635413. The reversal of 1297113635408 is 8045363117921.

It is a super-2 number, since 2×1297113635408² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 31259891 + ... + 31301357.

It is an arithmetic number, because the mean of its divisors is an integer number (63088876116).

It is a 1-persistent number, because it is pandigital, but 2⋅1297113635408 = 2594227270816 is not.

Almost surely, 2^{1297113635408} is an apocalyptic number.

It is an amenable number.

1297113635408 is a deficient number, since it is larger than the sum of its proper divisors (1226441409232).

1297113635408 is a wasteful number, since it uses less digits than its factorization.

1297113635408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49515 (or 49509 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 1297113635408 in words is "one trillion, two hundred ninety-seven billion, one hundred thirteen million, six hundred thirty-five thousand, four hundred eight".