51347442400 has 36 divisors (see below), whose sum is σ = 125351945712. Its totient is φ = 20538976640.

The previous prime is 51347442397. The next prime is 51347442437. The reversal of 51347442400 is 424474315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32091352 + ... + 32092951.

It is an arithmetic number, because the mean of its divisors is an integer number (3481998492).

Almost surely, 2^51347442400 is an apocalyptic number.

51347442400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51347442400 is an abundant number, since it is smaller than the sum of its proper divisors (74004503312).

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

51347442400 is a wasteful number, since it uses less digits than its factorization.

51347442400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64184323 (or 64184310 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 51347442400 in words is "fifty-one billion, three hundred forty-seven million, four hundred forty-two thousand, four hundred".