117638626522 has 16 divisors (see below), whose sum is σ = 177787476072. Its totient is φ = 58376335360.

The previous prime is 117638626517. The next prime is 117638626529. The reversal of 117638626522 is 225626836711.

It can be written as a sum of positive squares in 4 ways, for example, as 92750093401 + 24888533121 = 304549^2 + 157761^2 .

It is not an unprimeable number, because it can be changed into a prime (117638626529) 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, 1179888 + ... + 1275700.

Almost surely, 2^117638626522 is an apocalyptic number.

117638626522 is a deficient number, since it is larger than the sum of its proper divisors (60148849550).

117638626522 is a wasteful number, since it uses less digits than its factorization.

117638626522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100433.

The product of its digits is 1451520, while the sum is 49.

The spelling of 117638626522 in words is "one hundred seventeen billion, six hundred thirty-eight million, six hundred twenty-six thousand, five hundred twenty-two".