1387637513875 has 16 divisors (see below), whose sum is σ = 1731816406944. Its totient is φ = 1110081300000.

The previous prime is 1387637513869. The next prime is 1387637513903. The reversal of 1387637513875 is 5783157367831.

It is not a de Polignac number, because 1387637513875 - 2⁷ = 1387637513747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5635845 + ... + 5876905.

It is an arithmetic number, because the mean of its divisors is an integer number (108238525434).

Almost surely, 2^{1387637513875} is an apocalyptic number.

1387637513875 is a deficient number, since it is larger than the sum of its proper divisors (344178893069).

1387637513875 is an equidigital number, since it uses as much as digits as its factorization.

1387637513875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287127 (or 287117 counting only the distinct ones).

The product of its digits is 88905600, while the sum is 64.

The spelling of 1387637513875 in words is "one trillion, three hundred eighty-seven billion, six hundred thirty-seven million, five hundred thirteen thousand, eight hundred seventy-five".