138506000784 has 80 divisors (see below), whose sum is σ = 359909744064. Its totient is φ = 45897868800.

The previous prime is 138506000771. The next prime is 138506000807. The reversal of 138506000784 is 487000605831.

It is a super-2 number, since 2×138506000784² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9523182 + ... + 9537714.

Almost surely, 2^138506000784 is an apocalyptic number.

It is an amenable number.

138506000784 is an abundant number, since it is smaller than the sum of its proper divisors (221403743280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138506000784 is a wasteful number, since it uses less digits than its factorization.

138506000784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15696 (or 15690 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 138506000784 in words is "one hundred thirty-eight billion, five hundred six million, seven hundred eighty-four", and thus it is an aban number.