51319425024 has 144 divisors (see below), whose sum is σ = 169394621760. Its totient is φ = 14662656000.

The previous prime is 51319425023. The next prime is 51319425029. The reversal of 51319425024 is 42052491315.

51319425024 is a `hidden beast` number, since 513 + 1 + 94 + 2 + 50 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51319425024.

It is not an unprimeable number, because it can be changed into a prime (51319425023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69852 + ... + 327899.

It is an arithmetic number, because the mean of its divisors is an integer number (1176351540).

Almost surely, 2^51319425024 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 51319425024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84697310880).

51319425024 is an abundant number, since it is smaller than the sum of its proper divisors (118075196736).

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

51319425024 is a wasteful number, since it uses less digits than its factorization.

51319425024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397786 (or 397763 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 51319425024 in words is "fifty-one billion, three hundred nineteen million, four hundred twenty-five thousand, twenty-four".