61317765047200 has 72 divisors (see below), whose sum is σ = 149767638007680. Its totient is φ = 24514711699200.

The previous prime is 61317765047197. The next prime is 61317765047239. The reversal of 61317765047200 is 274056771316.

61317765047200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17781936 + ... + 20948335.

It is an arithmetic number, because the mean of its divisors is an integer number (2080106083440).

Almost surely, 2^{61317765047200} is an apocalyptic number.

It is an amenable number.

61317765047200 is an abundant number, since it is smaller than the sum of its proper divisors (88449872960480).

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

61317765047200 is a wasteful number, since it uses less digits than its factorization.

61317765047200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38732270 (or 38732257 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 61317765047200 in words is "sixty-one trillion, three hundred seventeen billion, seven hundred sixty-five million, forty-seven thousand, two hundred".