51072036767 has 4 divisors (see below), whose sum is σ = 52719521856. Its totient is φ = 49424551680.

The previous prime is 51072036737. The next prime is 51072036773. The reversal of 51072036767 is 76763027015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51072036767 - 2⁸ = 51072036511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51072036707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823742498 + ... + 823742559.

It is an arithmetic number, because the mean of its divisors is an integer number (13179880464).

Almost surely, 2^51072036767 is an apocalyptic number.

51072036767 is a deficient number, since it is larger than the sum of its proper divisors (1647485089).

51072036767 is a wasteful number, since it uses less digits than its factorization.

51072036767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647485088.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 51072036767 in words is "fifty-one billion, seventy-two million, thirty-six thousand, seven hundred sixty-seven".