138988879554411 has 16 divisors (see below), whose sum is σ = 206157834157600. Its totient is φ = 92547480701664.

The previous prime is 138988879554347. The next prime is 138988879554431. The reversal of 138988879554411 is 114455978889831.

138988879554411 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 8 + 8 + 87 + 95 + 5 + 441 + 1 = 666.

It is not a de Polignac number, because 138988879554411 - 2⁶ = 138988879554347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138988879554431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3104764276 + ... + 3104809041.

It is an arithmetic number, because the mean of its divisors is an integer number (12884864634850).

Almost surely, 2^{138988879554411} is an apocalyptic number.

138988879554411 is a deficient number, since it is larger than the sum of its proper divisors (67168954603189).

138988879554411 is an equidigital number, since it uses as much as digits as its factorization.

138988879554411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209574155 (or 6209574149 counting only the distinct ones).

The product of its digits is 2786918400, while the sum is 81.

The spelling of 138988879554411 in words is "one hundred thirty-eight trillion, nine hundred eighty-eight billion, eight hundred seventy-nine million, five hundred fifty-four thousand, four hundred eleven".