51131927222469 has 12 divisors (see below), whose sum is σ = 73917225974592. Its totient is φ = 34060260205800.

The previous prime is 51131927222459. The next prime is 51131927222533. The reversal of 51131927222469 is 96422272913115.

51131927222469 is a `hidden beast` number, since 5 + 1 + 1 + 3 + 1 + 92 + 72 + 22 + 469 = 666.

It is not a de Polignac number, because 51131927222469 - 2¹¹ = 51131927220421 is a prime.

It is a super-2 number, since 2×51131927222469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51131927222429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2307594627 + ... + 2307616784.

It is an arithmetic number, because the mean of its divisors is an integer number (6159768831216).

Almost surely, 2^{51131927222469} is an apocalyptic number.

It is an amenable number.

51131927222469 is a deficient number, since it is larger than the sum of its proper divisors (22785298752123).

51131927222469 is a wasteful number, since it uses less digits than its factorization.

51131927222469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615212648 (or 4615212645 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 51131927222469 in words is "fifty-one trillion, one hundred thirty-one billion, nine hundred twenty-seven million, two hundred twenty-two thousand, four hundred sixty-nine".