138954744883 has 16 divisors (see below), whose sum is σ = 144344198880. Its totient is φ = 133606319616.

The previous prime is 138954744809. The next prime is 138954744911. The reversal of 138954744883 is 388447459831.

It is a cyclic number.

It is not a de Polignac number, because 138954744883 - 2³⁷ = 1515791411 is a prime.

It is a super-2 number, since 2×138954744883² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138954744683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6984316 + ... + 7004182.

It is an arithmetic number, because the mean of its divisors is an integer number (9021512430).

Almost surely, 2^138954744883 is an apocalyptic number.

138954744883 is a deficient number, since it is larger than the sum of its proper divisors (5389453997).

138954744883 is a wasteful number, since it uses less digits than its factorization.

138954744883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20886.

The product of its digits is 92897280, while the sum is 64.

The spelling of 138954744883 in words is "one hundred thirty-eight billion, nine hundred fifty-four million, seven hundred forty-four thousand, eight hundred eighty-three".