51364218575 has 12 divisors (see below), whose sum is σ = 67043822760. Its totient is φ = 38928670560.

The previous prime is 51364218559. The next prime is 51364218583. The reversal of 51364218575 is 57581246315.

It is not a de Polignac number, because 51364218575 - 2⁴ = 51364218559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54067124 + ... + 54068073.

It is an arithmetic number, because the mean of its divisors is an integer number (5586985230).

Almost surely, 2^51364218575 is an apocalyptic number.

51364218575 is a deficient number, since it is larger than the sum of its proper divisors (15679604185).

51364218575 is a wasteful number, since it uses less digits than its factorization.

51364218575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108135226 (or 108135221 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 47.

The spelling of 51364218575 in words is "fifty-one billion, three hundred sixty-four million, two hundred eighteen thousand, five hundred seventy-five".