51227865615360 has 1408 divisors, whose sum is σ = 203029595596800. Its totient is φ = 10762919608320.

The previous prime is 51227865615337. The next prime is 51227865615371. The reversal of 51227865615360 is 6351656872215.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 51227865615360.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16165307856 + ... + 16165311024.

Almost surely, 2^{51227865615360} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51227865615360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101514797798400).

51227865615360 is an abundant number, since it is smaller than the sum of its proper divisors (151801729981440).

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

51227865615360 is a wasteful number, since it uses less digits than its factorization.

51227865615360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 57.

The spelling of 51227865615360 in words is "fifty-one trillion, two hundred twenty-seven billion, eight hundred sixty-five million, six hundred fifteen thousand, three hundred sixty".