1390517973456 has 40 divisors (see below), whose sum is σ = 3595988946144. Its totient is φ = 463013408640.

The previous prime is 1390517973433. The next prime is 1390517973457. The reversal of 1390517973456 is 6543797150931.

It is a super-2 number, since 2×1390517973456² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1390517973456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390517973457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15347566 + ... + 15437901.

Almost surely, 2^{1390517973456} is an apocalyptic number.

1390517973456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1390517973456 is an abundant number, since it is smaller than the sum of its proper divisors (2205470972688).

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

1390517973456 is a wasteful number, since it uses less digits than its factorization.

1390517973456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30786419 (or 30786413 counting only the distinct ones).

The product of its (nonzero) digits is 21432600, while the sum is 60.

The spelling of 1390517973456 in words is "one trillion, three hundred ninety billion, five hundred seventeen million, nine hundred seventy-three thousand, four hundred fifty-six".