61473246064 has 20 divisors (see below), whose sum is σ = 119270089440. Its totient is φ = 30693868160.

The previous prime is 61473246031. The next prime is 61473246073. The reversal of 61473246064 is 46064237416.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61473246064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660317 + ... + 2683324.

It is an arithmetic number, because the mean of its divisors is an integer number (5963504472).

Almost surely, 2^61473246064 is an apocalyptic number.

It is an amenable number.

61473246064 is a deficient number, since it is larger than the sum of its proper divisors (57796843376).

61473246064 is a wasteful number, since it uses less digits than its factorization.

61473246064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344368 (or 5344362 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 61473246064 in words is "sixty-one billion, four hundred seventy-three million, two hundred forty-six thousand, sixty-four".