1388751250139 has 10 divisors (see below), whose sum is σ = 1527616905900. Its totient is φ = 1262501123180.

The previous prime is 1388751250099. The next prime is 1388751250177. The reversal of 1388751250139 is 9310521578831.

It is a de Polignac number, because none of the positive numbers 2^k-1388751250139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1388751250189) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47412149 + ... + 47441430.

It is an arithmetic number, because the mean of its divisors is an integer number (152761690590).

Almost surely, 2^{1388751250139} is an apocalyptic number.

1388751250139 is a deficient number, since it is larger than the sum of its proper divisors (138865655761).

1388751250139 is an frugal number, since it uses more digits than its factorization.

1388751250139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94853623 (or 94853590 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 1388751250139 in words is "one trillion, three hundred eighty-eight billion, seven hundred fifty-one million, two hundred fifty thousand, one hundred thirty-nine".