51376866775 has 36 divisors (see below), whose sum is σ = 70099657432. Its totient is φ = 37132090560.

The previous prime is 51376866719. The next prime is 51376866781. The reversal of 51376866775 is 57766867315.

It is a happy number.

It is not a de Polignac number, because 51376866775 - 2¹³ = 51376858583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 682144 + ... + 753706.

Almost surely, 2^51376866775 is an apocalyptic number.

51376866775 is a deficient number, since it is larger than the sum of its proper divisors (18722790657).

51376866775 is a wasteful number, since it uses less digits than its factorization.

51376866775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71680 (or 71628 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 61.

The spelling of 51376866775 in words is "fifty-one billion, three hundred seventy-six million, eight hundred sixty-six thousand, seven hundred seventy-five".