51112666079 has 4 divisors (see below), whose sum is σ = 52301332776. Its totient is φ = 49923999384.

The previous prime is 51112666043. The next prime is 51112666081. The reversal of 51112666079 is 97066621115.

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 51112666079 - 2¹² = 51112661983 is a prime.

It is a super-2 number, since 2×51112666079² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112666009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 594333284 + ... + 594333369.

It is an arithmetic number, because the mean of its divisors is an integer number (13075333194).

Almost surely, 2^51112666079 is an apocalyptic number.

51112666079 is a deficient number, since it is larger than the sum of its proper divisors (1188666697).

51112666079 is a wasteful number, since it uses less digits than its factorization.

51112666079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188666696.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 51112666079 in words is "fifty-one billion, one hundred twelve million, six hundred sixty-six thousand, seventy-nine".