69364647138 has 16 divisors (see below), whose sum is σ = 146030836320. Its totient is φ = 21904625376.

The previous prime is 69364647133. The next prime is 69364647167. The reversal of 69364647138 is 83174646396.

It is a super-2 number, since 2×69364647138² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (69364647133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304230795 + ... + 304231022.

It is an arithmetic number, because the mean of its divisors is an integer number (9126927270).

Almost surely, 2^69364647138 is an apocalyptic number.

69364647138 is an abundant number, since it is smaller than the sum of its proper divisors (76666189182).

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

69364647138 is a wasteful number, since it uses less digits than its factorization.

69364647138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608461841.

The product of its digits is 15676416, while the sum is 57.

The spelling of 69364647138 in words is "sixty-nine billion, three hundred sixty-four million, six hundred forty-seven thousand, one hundred thirty-eight".