51011771671 has 8 divisors (see below), whose sum is σ = 58307572224. Its totient is φ = 43718072280.

The previous prime is 51011771623. The next prime is 51011771711. The reversal of 51011771671 is 17617711015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51011771671 - 2³⁵ = 16652033303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51011771671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011771071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472915 + ... + 570676.

It is an arithmetic number, because the mean of its divisors is an integer number (7288446528).

Almost surely, 2^51011771671 is an apocalyptic number.

51011771671 is a deficient number, since it is larger than the sum of its proper divisors (7295800553).

51011771671 is a wasteful number, since it uses less digits than its factorization.

51011771671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050581.

The product of its (nonzero) digits is 10290, while the sum is 37.

The spelling of 51011771671 in words is "fifty-one billion, eleven million, seven hundred seventy-one thousand, six hundred seventy-one".