1399654203938 has 48 divisors (see below), whose sum is σ = 2270466386496. Its totient is φ = 645550345440.

The previous prime is 1399654203887. The next prime is 1399654203967. The reversal of 1399654203938 is 8393024569931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12288008 + ... + 12401388.

It is an arithmetic number, because the mean of its divisors is an integer number (47301383052).

Almost surely, 2^{1399654203938} is an apocalyptic number.

1399654203938 is a deficient number, since it is larger than the sum of its proper divisors (870812182558).

1399654203938 is a wasteful number, since it uses less digits than its factorization.

1399654203938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113607 (or 113528 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 1399654203938 in words is "one trillion, three hundred ninety-nine billion, six hundred fifty-four million, two hundred three thousand, nine hundred thirty-eight".