5131181508 has 24 divisors (see below), whose sum is σ = 12067034112. Its totient is φ = 1696925664.

The previous prime is 5131181459. The next prime is 5131181521. The reversal of 5131181508 is 8051811315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681935 + ... + 1684982.

It is an arithmetic number, because the mean of its divisors is an integer number (502793088).

Almost surely, 2^5131181508 is an apocalyptic number.

It is an amenable number.

5131181508 is an abundant number, since it is smaller than the sum of its proper divisors (6935852604).

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

5131181508 is a wasteful number, since it uses less digits than its factorization.

5131181508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367051 (or 3367049 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 33.

The square root of 5131181508 is about 71632.2658304203. The cubic root of 5131181508 is about 1724.8015183520.

The spelling of 5131181508 in words is "five billion, one hundred thirty-one million, one hundred eighty-one thousand, five hundred eight".