51122744448780 has 48 divisors (see below), whose sum is σ = 143146946073600. Its totient is φ = 13632421222848.

The previous prime is 51122744448757. The next prime is 51122744448791. The reversal of 51122744448780 is 8784444722115.

It is a super-3 number, since 3×51122744448780³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51122744448780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7045980 + ... + 12324419.

It is an arithmetic number, because the mean of its divisors is an integer number (2982228043200).

Almost surely, 2^{51122744448780} is an apocalyptic number.

It is an amenable number.

51122744448780 is an abundant number, since it is smaller than the sum of its proper divisors (92024201624820).

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

51122744448780 is a wasteful number, since it uses less digits than its factorization.

51122744448780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19414398 (or 19414396 counting only the distinct ones).

The product of its (nonzero) digits is 16056320, while the sum is 57.

The spelling of 51122744448780 in words is "fifty-one trillion, one hundred twenty-two billion, seven hundred forty-four million, four hundred forty-eight thousand, seven hundred eighty".