1387332397500 has 120 divisors (see below), whose sum is σ = 4622961678720. Its totient is φ = 317104536000.

The previous prime is 1387332397471. The next prime is 1387332397537. The reversal of 1387332397500 is 57932337831.

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 39 ways as a sum of consecutive naturals, for example, 13160190 + ... + 13265189.

It is an arithmetic number, because the mean of its divisors is an integer number (38524680656).

Almost surely, 2^{1387332397500} is an apocalyptic number.

1387332397500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387332397500 is an abundant number, since it is smaller than the sum of its proper divisors (3235629281220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387332397500 is a wasteful number, since it uses less digits than its factorization.

1387332397500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26425413 (or 26425396 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 1387332397500 in words is "one trillion, three hundred eighty-seven billion, three hundred thirty-two million, three hundred ninety-seven thousand, five hundred".