61122974680 has 32 divisors (see below), whose sum is σ = 137533951440. Its totient is φ = 24447899520.

The previous prime is 61122974621. The next prime is 61122974699. The reversal of 61122974680 is 8647922116.

It is a super-2 number, since 2×61122974680² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61122974680.

It is a congruent number.

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, 1191970 + ... + 1242190.

Almost surely, 2^61122974680 is an apocalyptic number.

It is an amenable number.

61122974680 is an abundant number, since it is smaller than the sum of its proper divisors (76410976760).

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

61122974680 is a wasteful number, since it uses less digits than its factorization.

61122974680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80659 (or 80655 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 61122974680 in words is "sixty-one billion, one hundred twenty-two million, nine hundred seventy-four thousand, six hundred eighty".