1399887640376 has 8 divisors (see below), whose sum is σ = 2624789325720. Its totient is φ = 699943820184.

The previous prime is 1399887640351. The next prime is 1399887640409. The reversal of 1399887640376 is 6730467889931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87492977516 + ... + 87492977531.

It is an arithmetic number, because the mean of its divisors is an integer number (328098665715).

Almost surely, 2^{1399887640376} is an apocalyptic number.

It is an amenable number.

1399887640376 is a deficient number, since it is larger than the sum of its proper divisors (1224901685344).

1399887640376 is a wasteful number, since it uses less digits than its factorization.

1399887640376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174985955053 (or 174985955049 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 71.

The spelling of 1399887640376 in words is "one trillion, three hundred ninety-nine billion, eight hundred eighty-seven million, six hundred forty thousand, three hundred seventy-six".