1387765137776 has 40 divisors (see below), whose sum is σ = 2726844470784. Its totient is φ = 684064624320.

The previous prime is 1387765137769. The next prime is 1387765137833. The reversal of 1387765137776 is 6777315677831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23152421 + ... + 23212283.

Almost surely, 2^{1387765137776} is an apocalyptic number.

1387765137776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1387765137776 is a deficient number, since it is larger than the sum of its proper divisors (1339079333008).

1387765137776 is a wasteful number, since it uses less digits than its factorization.

1387765137776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80349 (or 80343 counting only the distinct ones).

The product of its digits is 217818720, while the sum is 68.

The spelling of 1387765137776 in words is "one trillion, three hundred eighty-seven billion, seven hundred sixty-five million, one hundred thirty-seven thousand, seven hundred seventy-six".