51844044799 has 2 divisors, whose sum is σ = 51844044800. Its totient is φ = 51844044798.

The previous prime is 51844044797. The next prime is 51844044809. The reversal of 51844044799 is 99744044815.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51844044799 - 2¹ = 51844044797 is a prime.

It is a super-2 number, since 2×51844044799² (a number of 22 digits) contains 22 as substring.

Together with 51844044797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51844044797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25922022399 + 25922022400.

It is an arithmetic number, because the mean of its divisors is an integer number (25922022400).

Almost surely, 2^51844044799 is an apocalyptic number.

51844044799 is a deficient number, since it is larger than the sum of its proper divisors (1).

51844044799 is an equidigital number, since it uses as much as digits as its factorization.

51844044799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 51844044799 in words is "fifty-one billion, eight hundred forty-four million, forty-four thousand, seven hundred ninety-nine".