51754793867 has 48 divisors (see below), whose sum is σ = 64496931840. Its totient is φ = 41316283008.

The previous prime is 51754793819. The next prime is 51754793879. The reversal of 51754793867 is 76839745715.

It is a happy number.

It is not a de Polignac number, because 51754793867 - 2²⁴ = 51738016651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51754793887) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6495428 + ... + 6503390.

It is an arithmetic number, because the mean of its divisors is an integer number (1343686080).

Almost surely, 2^51754793867 is an apocalyptic number.

51754793867 is a deficient number, since it is larger than the sum of its proper divisors (12742137973).

51754793867 is a wasteful number, since it uses less digits than its factorization.

51754793867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152 (or 8145 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 62.

The spelling of 51754793867 in words is "fifty-one billion, seven hundred fifty-four million, seven hundred ninety-three thousand, eight hundred sixty-seven".