5131644606 has 36 divisors (see below), whose sum is σ = 12221235936. Its totient is φ = 1555043160.

The previous prime is 5131644541. The next prime is 5131644607. The reversal of 5131644606 is 6064461315.

It is a happy number.

5131644606 is a `hidden beast` number, since 5 + 1 + 3 + 1 + 6 + 44 + 606 = 666.

It is a super-3 number, since 3×5131644606³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131644607) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1175886 + ... + 1180241.

It is an arithmetic number, because the mean of its divisors is an integer number (339478776).

Almost surely, 2^5131644606 is an apocalyptic number.

5131644606 is an abundant number, since it is smaller than the sum of its proper divisors (7089591330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5131644606 is a wasteful number, since it uses less digits than its factorization.

5131644606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356157 (or 2356143 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 5131644606 is about 71635.4982253910. The cubic root of 5131644606 is about 1724.8534055638.

The spelling of 5131644606 in words is "five billion, one hundred thirty-one million, six hundred forty-four thousand, six hundred six".