1387765137775 has 24 divisors (see below), whose sum is σ = 1758839927040. Its totient is φ = 1085726360160.

The previous prime is 1387765137769. The next prime is 1387765137833. The reversal of 1387765137775 is 5777315677831.

It is not a de Polignac number, because 1387765137775 - 2¹⁷ = 1387765006703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1387765137775.

It is a congruent number.

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, 1010272 + ... + 1948378.

It is an arithmetic number, because the mean of its divisors is an integer number (73284996960).

Almost surely, 2^{1387765137775} is an apocalyptic number.

1387765137775 is a deficient number, since it is larger than the sum of its proper divisors (371074789265).

1387765137775 is a wasteful number, since it uses less digits than its factorization.

1387765137775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939423 (or 939418 counting only the distinct ones).

The product of its digits is 181515600, while the sum is 67.

The spelling of 1387765137775 in words is "one trillion, three hundred eighty-seven billion, seven hundred sixty-five million, one hundred thirty-seven thousand, seven hundred seventy-five".