61198985922 has 16 divisors (see below), whose sum is σ = 122417182272. Its totient is φ = 20396460240.

The previous prime is 61198985909. The next prime is 61198986047. The reversal of 61198985922 is 22958989116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758854 + ... + 835617.

It is an arithmetic number, because the mean of its divisors is an integer number (7651073892).

Almost surely, 2^61198985922 is an apocalyptic number.

61198985922 is an abundant number, since it is smaller than the sum of its proper divisors (61218196350).

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

61198985922 is a wasteful number, since it uses less digits than its factorization.

61198985922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600873.

The product of its digits is 5598720, while the sum is 60.

The spelling of 61198985922 in words is "sixty-one billion, one hundred ninety-eight million, nine hundred eighty-five thousand, nine hundred twenty-two".