51010611669 has 6 divisors (see below), whose sum is σ = 73681994646. Its totient is φ = 34007074440.

The previous prime is 51010611629. The next prime is 51010611683. The reversal of 51010611669 is 96611601015.

51010611669 is a `hidden beast` number, since 510 + 10 + 61 + 16 + 69 = 666.

51010611669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50942747025 + 67864644 = 225705^2 + 8238^2 .

It is not a de Polignac number, because 51010611669 - 2⁸ = 51010611413 is a prime.

It is a super-2 number, since 2×51010611669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010611629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833922862 + ... + 2833922879.

It is an arithmetic number, because the mean of its divisors is an integer number (12280332441).

Almost surely, 2^51010611669 is an apocalyptic number.

It is an amenable number.

51010611669 is a deficient number, since it is larger than the sum of its proper divisors (22671382977).

51010611669 is a wasteful number, since it uses less digits than its factorization.

51010611669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667845747 (or 5667845744 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 51010611669 in words is "fifty-one billion, ten million, six hundred eleven thousand, six hundred sixty-nine".