138754715551 has 8 divisors (see below), whose sum is σ = 139698382208. Its totient is φ = 137811375000.

The previous prime is 138754715549. The next prime is 138754715579. The reversal of 138754715551 is 155517457831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138754715551 - 2¹ = 138754715549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138754715521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804976 + ... + 962026.

It is an arithmetic number, because the mean of its divisors is an integer number (17462297776).

Almost surely, 2^138754715551 is an apocalyptic number.

138754715551 is a deficient number, since it is larger than the sum of its proper divisors (943666657).

138754715551 is a wasteful number, since it uses less digits than its factorization.

138754715551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163053.

The product of its digits is 2940000, while the sum is 52.

The spelling of 138754715551 in words is "one hundred thirty-eight billion, seven hundred fifty-four million, seven hundred fifteen thousand, five hundred fifty-one".