61920004472 has 64 divisors (see below), whose sum is σ = 123168988800. Its totient is φ = 29132530560.

The previous prime is 61920004423. The next prime is 61920004477. The reversal of 61920004472 is 27440002916.

61920004472 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 not an unprimeable number, because it can be changed into a prime (61920004477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4652147 + ... + 4665437.

It is an arithmetic number, because the mean of its divisors is an integer number (1924515450).

Almost surely, 2^61920004472 is an apocalyptic number.

It is an amenable number.

61920004472 is a deficient number, since it is larger than the sum of its proper divisors (61248984328).

61920004472 is a wasteful number, since it uses less digits than its factorization.

61920004472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836 (or 13832 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 61920004472 in words is "sixty-one billion, nine hundred twenty million, four thousand, four hundred seventy-two".