1387638750124 has 36 divisors (see below), whose sum is σ = 2734300099944. Its totient is φ = 615360856000.

The previous prime is 1387638750049. The next prime is 1387638750143. The reversal of 1387638750124 is 4210578367831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34943842 + ... + 34983529.

It is an arithmetic number, because the mean of its divisors is an integer number (75952780554).

Almost surely, 2^{1387638750124} is an apocalyptic number.

It is an amenable number.

1387638750124 is a deficient number, since it is larger than the sum of its proper divisors (1346661349820).

1387638750124 is a wasteful number, since it uses less digits than its factorization.

1387638750124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69927438 (or 69927425 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 1387638750124 in words is "one trillion, three hundred eighty-seven billion, six hundred thirty-eight million, seven hundred fifty thousand, one hundred twenty-four".