1388896611125 has 8 divisors (see below), whose sum is σ = 1733342970840. Its totient is φ = 1111117288800.

The previous prime is 1388896611077. The next prime is 1388896611131. The reversal of 1388896611125 is 5211166988831.

It can be written as a sum of positive squares in 4 ways, for example, as 158090531236 + 1230806079889 = 397606^2 + 1109417^2 .

It is not a de Polignac number, because 1388896611125 - 2¹⁸ = 1388896348981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555586320 + ... + 5555586569.

It is an arithmetic number, because the mean of its divisors is an integer number (216667871355).

Almost surely, 2^{1388896611125} is an apocalyptic number.

It is an amenable number.

1388896611125 is a deficient number, since it is larger than the sum of its proper divisors (344446359715).

1388896611125 is an equidigital number, since it uses as much as digits as its factorization.

1388896611125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111172904 (or 11111172894 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 59.

The spelling of 1388896611125 in words is "one trillion, three hundred eighty-eight billion, eight hundred ninety-six million, six hundred eleven thousand, one hundred twenty-five".