61522018422 has 32 divisors (see below), whose sum is σ = 123242890848. Its totient is φ = 20474228736.

The previous prime is 61522018379. The next prime is 61522018423. The reversal of 61522018422 is 22481022516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61522018423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12319158 + ... + 12324150.

It is an arithmetic number, because the mean of its divisors is an integer number (3851340339).

Almost surely, 2^61522018422 is an apocalyptic number.

61522018422 is an abundant number, since it is smaller than the sum of its proper divisors (61720872426).

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

61522018422 is a wasteful number, since it uses less digits than its factorization.

61522018422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 61522018422 in words is "sixty-one billion, five hundred twenty-two million, eighteen thousand, four hundred twenty-two".