7131703816 has 16 divisors (see below), whose sum is σ = 13461691500. Its totient is φ = 3541919424.

The previous prime is 7131703793. The next prime is 7131703933. The reversal of 7131703816 is 6183071317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6870752100 + 260951716 = 82890^2 + 16154^2 .

It is a super-2 number, since 2×7131703816² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990295 + ... + 2992678.

Almost surely, 2^7131703816 is an apocalyptic number.

It is an amenable number.

7131703816 is a deficient number, since it is larger than the sum of its proper divisors (6329987684).

7131703816 is a wasteful number, since it uses less digits than its factorization.

7131703816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5983128 (or 5983124 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 7131703816 is about 84449.4157232600. The cubic root of 7131703816 is about 1924.8538768940.

The spelling of 7131703816 in words is "seven billion, one hundred thirty-one million, seven hundred three thousand, eight hundred sixteen".