61363158984 has 48 divisors (see below), whose sum is σ = 172347149520. Its totient is φ = 20454385680.

The previous prime is 61363158977. The next prime is 61363159007. The reversal of 61363158984 is 48985136316.

61363158984 is a `hidden beast` number, since 613 + 6 + 3 + 15 + 8 + 9 + 8 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61363158984.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15780762 + ... + 15784649.

It is an arithmetic number, because the mean of its divisors is an integer number (3590565615).

Almost surely, 2^61363158984 is an apocalyptic number.

It is an amenable number.

61363158984 is an abundant number, since it is smaller than the sum of its proper divisors (110983990536).

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

61363158984 is a wasteful number, since it uses less digits than its factorization.

61363158984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565432 (or 31565416 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 61363158984 in words is "sixty-one billion, three hundred sixty-three million, one hundred fifty-eight thousand, nine hundred eighty-four".