1388559172379 has 2 divisors, whose sum is σ = 1388559172380. Its totient is φ = 1388559172378.

The previous prime is 1388559172369. The next prime is 1388559172391. The reversal of 1388559172379 is 9732719558831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1388559172379 - 2²⁸ = 1388290736923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388559172349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694279586189 + 694279586190.

It is an arithmetic number, because the mean of its divisors is an integer number (694279586190).

Almost surely, 2^{1388559172379} is an apocalyptic number.

1388559172379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388559172379 is an equidigital number, since it uses as much as digits as its factorization.

1388559172379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 68.

The spelling of 1388559172379 in words is "one trillion, three hundred eighty-eight billion, five hundred fifty-nine million, one hundred seventy-two thousand, three hundred seventy-nine".