138007138647 has 32 divisors (see below), whose sum is σ = 222488640000. Its totient is φ = 74331347328.

The previous prime is 138007138631. The next prime is 138007138667. The reversal of 138007138647 is 746831700831.

It is not a de Polignac number, because 138007138647 - 2⁴ = 138007138631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138007138596 and 138007138605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138007138667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 799272 + ... + 956477.

It is an arithmetic number, because the mean of its divisors is an integer number (6952770000).

Almost surely, 2^138007138647 is an apocalyptic number.

138007138647 is a deficient number, since it is larger than the sum of its proper divisors (84481501353).

138007138647 is a wasteful number, since it uses less digits than its factorization.

138007138647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755975.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 138007138647 in words is "one hundred thirty-eight billion, seven million, one hundred thirty-eight thousand, six hundred forty-seven".