51243754767 has 16 divisors (see below), whose sum is σ = 68718935040. Its totient is φ = 33965870400.

The previous prime is 51243754763. The next prime is 51243754769. The reversal of 51243754767 is 76745734215.

It is not a de Polignac number, because 51243754767 - 2² = 51243754763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51243754763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586459 + ... + 668147.

It is an arithmetic number, because the mean of its divisors is an integer number (4294933440).

Almost surely, 2^51243754767 is an apocalyptic number.

51243754767 is a deficient number, since it is larger than the sum of its proper divisors (17475180273).

51243754767 is a wasteful number, since it uses less digits than its factorization.

51243754767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82894.

The product of its digits is 4939200, while the sum is 51.

The spelling of 51243754767 in words is "fifty-one billion, two hundred forty-three million, seven hundred fifty-four thousand, seven hundred sixty-seven".