51044320320 has 112 divisors (see below), whose sum is σ = 185217986688. Its totient is φ = 11667271680.

The previous prime is 51044320277. The next prime is 51044320339. The reversal of 51044320320 is 2302344015.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 3791221 + ... + 3804660.

It is an arithmetic number, because the mean of its divisors is an integer number (1653732024).

Almost surely, 2^51044320320 is an apocalyptic number.

It is an amenable number.

51044320320 is an abundant number, since it is smaller than the sum of its proper divisors (134173666368).

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

51044320320 is a wasteful number, since it uses less digits than its factorization.

51044320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7595908 (or 7595898 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 51044320320 its reverse (2302344015), we get a palindrome (53346664335).

The spelling of 51044320320 in words is "fifty-one billion, forty-four million, three hundred twenty thousand, three hundred twenty".