61473407556 has 48 divisors (see below), whose sum is σ = 156505462848. Its totient is φ = 18625008000.

The previous prime is 61473407537. The next prime is 61473407561. The reversal of 61473407556 is 65570437416.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767166 + ... + 843498.

It is an arithmetic number, because the mean of its divisors is an integer number (3260530476).

Almost surely, 2^61473407556 is an apocalyptic number.

61473407556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61473407556 is an abundant number, since it is smaller than the sum of its proper divisors (95032055292).

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

61473407556 is a wasteful number, since it uses less digits than its factorization.

61473407556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82452 (or 82450 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 61473407556 in words is "sixty-one billion, four hundred seventy-three million, four hundred seven thousand, five hundred fifty-six".