51624197760 has 128 divisors (see below), whose sum is σ = 173212891200. Its totient is φ = 13041893376.

The previous prime is 51624197749. The next prime is 51624197761. The reversal of 51624197760 is 6779142615.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (51624197761) by changing a digit.

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, 671089 + ... + 744048.

Almost surely, 2^51624197760 is an apocalyptic number.

It is an amenable number.

51624197760 is an abundant number, since it is smaller than the sum of its proper divisors (121588693440).

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

51624197760 is a wasteful number, since it uses less digits than its factorization.

51624197760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415178 (or 1415166 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 51624197760 in words is "fifty-one billion, six hundred twenty-four million, one hundred ninety-seven thousand, seven hundred sixty".