51423751863 has 12 divisors (see below), whose sum is σ = 81031366728. Its totient is φ = 31165910160.

The previous prime is 51423751853. The next prime is 51423751871. The reversal of 51423751863 is 36815732415.

It is a happy number.

51423751863 is a `hidden beast` number, since 5 + 1 + 42 + 37 + 518 + 63 = 666.

It is not a de Polignac number, because 51423751863 - 2¹⁴ = 51423735479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423751823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259715820 + ... + 259716017.

It is an arithmetic number, because the mean of its divisors is an integer number (6752613894).

Almost surely, 2^51423751863 is an apocalyptic number.

51423751863 is a deficient number, since it is larger than the sum of its proper divisors (29607614865).

51423751863 is a wasteful number, since it uses less digits than its factorization.

51423751863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519431854 (or 519431851 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 51423751863 in words is "fifty-one billion, four hundred twenty-three million, seven hundred fifty-one thousand, eight hundred sixty-three".