138977400025 has 12 divisors (see below), whose sum is σ = 172521172224. Its totient is φ = 111059858000.

The previous prime is 138977400007. The next prime is 138977400041. The reversal of 138977400025 is 520004779831.

138977400025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138977400025 - 2¹⁷ = 138977268953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3028321 + ... + 3073870.

It is an arithmetic number, because the mean of its divisors is an integer number (14376764352).

Almost surely, 2^138977400025 is an apocalyptic number.

It is an amenable number.

138977400025 is a deficient number, since it is larger than the sum of its proper divisors (33543772199).

138977400025 is an equidigital number, since it uses as much as digits as its factorization.

138977400025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103112 (or 6103107 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 138977400025 in words is "one hundred thirty-eight billion, nine hundred seventy-seven million, four hundred thousand, twenty-five".