18780961122 has 96 divisors (see below), whose sum is σ = 53403217920. Its totient is φ = 4621419360.

The previous prime is 18780961093. The next prime is 18780961159. The reversal of 18780961122 is 22116908781.

18780961122 is a `hidden beast` number, since 1 + 8 + 7 + 8 + 0 + 9 + 611 + 22 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330258 + ... + 382925.

It is an arithmetic number, because the mean of its divisors is an integer number (556283520).

Almost surely, 2^18780961122 is an apocalyptic number.

18780961122 is an abundant number, since it is smaller than the sum of its proper divisors (34622256798).

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

18780961122 is a wasteful number, since it uses less digits than its factorization.

18780961122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713228 (or 713225 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 18780961122 in words is "eighteen billion, seven hundred eighty million, nine hundred sixty-one thousand, one hundred twenty-two".