5266131994 has 32 divisors (see below), whose sum is σ = 8071897680. Its totient is φ = 2576351232.

The previous prime is 5266131961. The next prime is 5266132033. The reversal of 5266131994 is 4991316625.

It can be written as a sum of positive squares in 8 ways, for example, as 137710225 + 5128421769 = 11735^2 + 71613^2 .

It is a super-3 number, since 3×5266131994³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847642 + ... + 6848410.

Almost surely, 2^5266131994 is an apocalyptic number.

5266131994 is a deficient number, since it is larger than the sum of its proper divisors (2805765686).

5266131994 is a wasteful number, since it uses less digits than its factorization.

5266131994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234.

The product of its digits is 349920, while the sum is 46.

The square root of 5266131994 is about 72568.1196807524. The cubic root of 5266131994 is about 1739.7916685880.

The spelling of 5266131994 in words is "five billion, two hundred sixty-six million, one hundred thirty-one thousand, nine hundred ninety-four".