138472947567 has 12 divisors (see below), whose sum is σ = 200583103344. Its totient is φ = 92053779840.

The previous prime is 138472947541. The next prime is 138472947593. The reversal of 138472947567 is 765749274831.

138472947567 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 7 + 29 + 47 + 567 = 666.

It is an interprime number because it is at equal distance from previous prime (138472947541) and next prime (138472947593).

It is not a de Polignac number, because 138472947567 - 2⁷ = 138472947439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138472987567) 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, 21789859 + ... + 21796212.

It is an arithmetic number, because the mean of its divisors is an integer number (16715258612).

Almost surely, 2^138472947567 is an apocalyptic number.

138472947567 is a deficient number, since it is larger than the sum of its proper divisors (62110155777).

138472947567 is a wasteful number, since it uses less digits than its factorization.

138472947567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43586430 (or 43586427 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 138472947567 in words is "one hundred thirty-eight billion, four hundred seventy-two million, nine hundred forty-seven thousand, five hundred sixty-seven".