138860467017877 has 48 divisors (see below), whose sum is σ = 155453987808000. Its totient is φ = 123923732486400.

The previous prime is 138860467017847. The next prime is 138860467017889. The reversal of 138860467017877 is 778710764068831.

It is a happy number.

It is not a de Polignac number, because 138860467017877 - 2³¹ = 138858319534229 is a prime.

It is a super-2 number, since 2×138860467017877² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138860467017827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3708167968 + ... + 3708205414.

It is an arithmetic number, because the mean of its divisors is an integer number (3238624746000).

Almost surely, 2^{138860467017877} is an apocalyptic number.

It is an amenable number.

138860467017877 is a deficient number, since it is larger than the sum of its proper divisors (16593520790123).

138860467017877 is a wasteful number, since it uses less digits than its factorization.

138860467017877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40018 (or 40007 counting only the distinct ones).

The product of its (nonzero) digits is 531062784, while the sum is 73.

The spelling of 138860467017877 in words is "one hundred thirty-eight trillion, eight hundred sixty billion, four hundred sixty-seven million, seventeen thousand, eight hundred seventy-seven".