51442710515472 has 20 divisors (see below), whose sum is σ = 132893668831760. Its totient is φ = 17147570171808.

The previous prime is 51442710515453. The next prime is 51442710515501. The reversal of 51442710515472 is 27451501724415.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1071723135739 = 51442710515472 / (5 + 1 + 4 + 4 + 2 + 7 + 1 + 0 + 5 + 1 + 5 + 4 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535861567822 + ... + 535861567917.

It is an arithmetic number, because the mean of its divisors is an integer number (6644683441588).

Almost surely, 2^{51442710515472} is an apocalyptic number.

It is an amenable number.

51442710515472 is an abundant number, since it is smaller than the sum of its proper divisors (81450958316288).

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

51442710515472 is a wasteful number, since it uses less digits than its factorization.

51442710515472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071723135750 (or 1071723135744 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 48.

The spelling of 51442710515472 in words is "fifty-one trillion, four hundred forty-two billion, seven hundred ten million, five hundred fifteen thousand, four hundred seventy-two".