138776501375 has 8 divisors (see below), whose sum is σ = 173193073872. Its totient is φ = 111021201000.

The previous prime is 138776501341. The next prime is 138776501401. The reversal of 138776501375 is 573105677831.

It is not a de Polignac number, because 138776501375 - 2²⁰ = 138775452799 is a prime.

It is a Duffinian number.

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, 555105881 + ... + 555106130.

It is an arithmetic number, because the mean of its divisors is an integer number (21649134234).

Almost surely, 2^138776501375 is an apocalyptic number.

138776501375 is a deficient number, since it is larger than the sum of its proper divisors (34416572497).

138776501375 is an equidigital number, since it uses as much as digits as its factorization.

138776501375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110212026 (or 1110212016 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 138776501375 in words is "one hundred thirty-eight billion, seven hundred seventy-six million, five hundred one thousand, three hundred seventy-five".