138440060019 has 12 divisors (see below), whose sum is σ = 201428604936. Its totient is φ = 91619698272.

The previous prime is 138440059973. The next prime is 138440060027. The reversal of 138440060019 is 910060044831.

138440060019 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 40 + 0 + 600 + 1 + 9 = 666.

It is not a de Polignac number, because 138440060019 - 2¹⁵ = 138440027251 is a prime.

It is a super-2 number, since 2×138440060019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138440060029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56138289 + ... + 56140754.

It is an arithmetic number, because the mean of its divisors is an integer number (16785717078).

Almost surely, 2^138440060019 is an apocalyptic number.

138440060019 is a deficient number, since it is larger than the sum of its proper divisors (62988544917).

138440060019 is a wasteful number, since it uses less digits than its factorization.

138440060019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112279186 (or 112279183 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 138440060019 in words is "one hundred thirty-eight billion, four hundred forty million, sixty thousand, nineteen".