5151851631 has 12 divisors (see below), whose sum is σ = 7513813008. Its totient is φ = 3401221824.

The previous prime is 5151851623. The next prime is 5151851633. The reversal of 5151851631 is 1361581515.

It is a happy number.

5151851631 is a `hidden beast` number, since 5 + 1 + 5 + 18 + 5 + 1 + 631 = 666.

It is not a de Polignac number, because 5151851631 - 2³ = 5151851623 is a prime.

It is a super-2 number, since 2×5151851631² = 53083150455674720322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151851633) 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, 2777850 + ... + 2779703.

It is an arithmetic number, because the mean of its divisors is an integer number (626151084).

Almost surely, 2^5151851631 is an apocalyptic number.

5151851631 is a deficient number, since it is larger than the sum of its proper divisors (2361961377).

5151851631 is a wasteful number, since it uses less digits than its factorization.

5151851631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557662 (or 5557659 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 5151851631 is about 71776.4002371253. The cubic root of 5151851631 is about 1727.1144420438.

The spelling of 5151851631 in words is "five billion, one hundred fifty-one million, eight hundred fifty-one thousand, six hundred thirty-one".