1387959679424 has 14 divisors (see below), whose sum is σ = 2754232488984. Its totient is φ = 693979839680.

The previous prime is 1387959679339. The next prime is 1387959679441. The reversal of 1387959679424 is 4249769597831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10843434932 + ... + 10843435059.

Almost surely, 2^{1387959679424} is an apocalyptic number.

It is an amenable number.

1387959679424 is a deficient number, since it is larger than the sum of its proper divisors (1366272809560).

1387959679424 is an equidigital number, since it uses as much as digits as its factorization.

1387959679424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21686870003 (or 21686869993 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 74.

The spelling of 1387959679424 in words is "one trillion, three hundred eighty-seven billion, nine hundred fifty-nine million, six hundred seventy-nine thousand, four hundred twenty-four".