18077927922 has 32 divisors (see below), whose sum is σ = 40854081600. Its totient is φ = 5923839744.

The previous prime is 18077927839. The next prime is 18077927953. The reversal of 18077927922 is 22972977081.

It is a happy number.

It is a super-2 number, since 2×18077927922² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2833903 + ... + 2840274.

It is an arithmetic number, because the mean of its divisors is an integer number (1276690050).

Almost surely, 2^18077927922 is an apocalyptic number.

18077927922 is an abundant number, since it is smaller than the sum of its proper divisors (22776153678).

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

18077927922 is a wasteful number, since it uses less digits than its factorization.

18077927922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674247 (or 5674241 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 18077927922 in words is "eighteen billion, seventy-seven million, nine hundred twenty-seven thousand, nine hundred twenty-two".