1387608938775 has 36 divisors (see below), whose sum is σ = 2593421005968. Its totient is φ = 707881658880.

The previous prime is 1387608938753. The next prime is 1387608938783. The reversal of 1387608938775 is 5778398067831.

1387608938775 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 608 + 9 + 3 + 8 + 7 + 7 + 5 = 666.

It is not a de Polignac number, because 1387608938775 - 2⁶ = 1387608938711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134063322 + ... + 134073671.

It is an arithmetic number, because the mean of its divisors is an integer number (72039472388).

Almost surely, 2^{1387608938775} is an apocalyptic number.

1387608938775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1387608938775 is a deficient number, since it is larger than the sum of its proper divisors (1205812067193).

1387608938775 is a wasteful number, since it uses less digits than its factorization.

1387608938775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268137032 (or 268137024 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 72.

The spelling of 1387608938775 in words is "one trillion, three hundred eighty-seven billion, six hundred eight million, nine hundred thirty-eight thousand, seven hundred seventy-five".