7131744994 has 16 divisors (see below), whose sum is σ = 11672847936. Its totient is φ = 3240946800.

The previous prime is 7131744979. The next prime is 7131745003. The reversal of 7131744994 is 4994471317.

It is a happy number.

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, 64984 + ... + 135964.

It is an arithmetic number, because the mean of its divisors is an integer number (729552996).

Almost surely, 2^7131744994 is an apocalyptic number.

7131744994 is a deficient number, since it is larger than the sum of its proper divisors (4541102942).

7131744994 is a wasteful number, since it uses less digits than its factorization.

7131744994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75561.

The product of its digits is 762048, while the sum is 49.

The square root of 7131744994 is about 84449.6595256606. The cubic root of 7131744994 is about 1924.8575815477.

The spelling of 7131744994 in words is "seven billion, one hundred thirty-one million, seven hundred forty-four thousand, nine hundred ninety-four".