61912468980 has 144 divisors (see below), whose sum is σ = 203473093824. Its totient is φ = 15177415680.

The previous prime is 61912468921. The next prime is 61912468987. The reversal of 61912468980 is 8986421916.

61912468980 is a `hidden beast` number, since 6 + 1 + 91 + 2 + 468 + 98 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61912468987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103686 + ... + 366845.

It is an arithmetic number, because the mean of its divisors is an integer number (1413007596).

Almost surely, 2^61912468980 is an apocalyptic number.

61912468980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61912468980 is an abundant number, since it is smaller than the sum of its proper divisors (141560624844).

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

61912468980 is a wasteful number, since it uses less digits than its factorization.

61912468980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470606 (or 470601 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 61912468980 in words is "sixty-one billion, nine hundred twelve million, four hundred sixty-eight thousand, nine hundred eighty".