51302040960 has 256 divisors, whose sum is σ = 174609768960. Its totient is φ = 12780945408.

The previous prime is 51302040919. The next prime is 51302040971. The reversal of 51302040960 is 6904020315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885372 + ... + 1912388.

It is an arithmetic number, because the mean of its divisors is an integer number (682069410).

Almost surely, 2^51302040960 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 51302040960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87304884480).

51302040960 is an abundant number, since it is smaller than the sum of its proper divisors (123307728000).

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

51302040960 is a wasteful number, since it uses less digits than its factorization.

51302040960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27105 (or 27093 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 51302040960 in words is "fifty-one billion, three hundred two million, forty thousand, nine hundred sixty".