1390015387664 has 40 divisors (see below), whose sum is σ = 2767221448992. Its totient is φ = 676027860480.

The previous prime is 1390015387601. The next prime is 1390015387667. The reversal of 1390015387664 is 4667835100931.

It is not an unprimeable number, because it can be changed into a prime (1390015387667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4025834 + ... + 4357449.

Almost surely, 2^{1390015387664} is an apocalyptic number.

It is an amenable number.

1390015387664 is a deficient number, since it is larger than the sum of its proper divisors (1377206061328).

1390015387664 is a wasteful number, since it uses less digits than its factorization.

1390015387664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8383575 (or 8383569 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 1390015387664 in words is "one trillion, three hundred ninety billion, fifteen million, three hundred eighty-seven thousand, six hundred sixty-four".