61273455960 has 64 divisors (see below), whose sum is σ = 184519399680. Its totient is φ = 16277452160.

The previous prime is 61273455941. The next prime is 61273455973. The reversal of 61273455960 is 6955437216.

61273455960 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 15 ways as a sum of consecutive naturals, for example, 939186 + ... + 1002305.

It is an arithmetic number, because the mean of its divisors is an integer number (2883115620).

Almost surely, 2^61273455960 is an apocalyptic number.

61273455960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61273455960 is an abundant number, since it is smaller than the sum of its proper divisors (123245943720).

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

61273455960 is a wasteful number, since it uses less digits than its factorization.

61273455960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941768 (or 1941764 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 61273455960 in words is "sixty-one billion, two hundred seventy-three million, four hundred fifty-five thousand, nine hundred sixty".