1390293938881 has 8 divisors (see below), whose sum is σ = 1391728177664. Its totient is φ = 1388859987600.

The previous prime is 1390293938843. The next prime is 1390293938909. The reversal of 1390293938881 is 1888393920931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1390293938881 - 2⁷ = 1390293938753 is a prime.

It is a super-2 number, since 2×1390293938881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390293938281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10382806 + ... + 10515856.

It is an arithmetic number, because the mean of its divisors is an integer number (173966022208).

Almost surely, 2^{1390293938881} is an apocalyptic number.

It is an amenable number.

1390293938881 is a deficient number, since it is larger than the sum of its proper divisors (1434238783).

1390293938881 is a wasteful number, since it uses less digits than its factorization.

1390293938881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143751.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 1390293938881 in words is "one trillion, three hundred ninety billion, two hundred ninety-three million, nine hundred thirty-eight thousand, eight hundred eighty-one".