51413663780 has 24 divisors (see below), whose sum is σ = 110265902208. Its totient is φ = 20127902048.

The previous prime is 51413663713. The next prime is 51413663789. The reversal of 51413663780 is 8736631415.

It is not an unprimeable number, because it can be changed into a prime (51413663789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27346754 + ... + 27348633.

It is an arithmetic number, because the mean of its divisors is an integer number (4594412592).

Almost surely, 2^51413663780 is an apocalyptic number.

It is an amenable number.

51413663780 is an abundant number, since it is smaller than the sum of its proper divisors (58852238428).

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

51413663780 is a wasteful number, since it uses less digits than its factorization.

51413663780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54695443 (or 54695441 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 51413663780 in words is "fifty-one billion, four hundred thirteen million, six hundred sixty-three thousand, seven hundred eighty".