61975413980 has 24 divisors (see below), whose sum is σ = 130225314912. Its totient is φ = 24775509312.

The previous prime is 61975413961. The next prime is 61975414001. The reversal of 61975413980 is 8931457916.

61975413980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 881312 + ... + 949031.

It is an arithmetic number, because the mean of its divisors is an integer number (5426054788).

Almost surely, 2^61975413980 is an apocalyptic number.

It is an amenable number.

61975413980 is an abundant number, since it is smaller than the sum of its proper divisors (68249900932).

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

61975413980 is a wasteful number, since it uses less digits than its factorization.

61975413980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832045 (or 1832043 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 61975413980 in words is "sixty-one billion, nine hundred seventy-five million, four hundred thirteen thousand, nine hundred eighty".