7681244931 has 16 divisors (see below), whose sum is σ = 11978550400. Its totient is φ = 4851312264.

The previous prime is 7681244911. The next prime is 7681244941. The reversal of 7681244931 is 1394421867.

It is not a de Polignac number, because 7681244931 - 2¹⁰ = 7681243907 is a prime.

It is a super-2 number, since 2×7681244931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7681244911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7486081 + ... + 7487106.

It is an arithmetic number, because the mean of its divisors is an integer number (748659400).

Almost surely, 2^7681244931 is an apocalyptic number.

7681244931 is a deficient number, since it is larger than the sum of its proper divisors (4297305469).

7681244931 is a wasteful number, since it uses less digits than its factorization.

7681244931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14973215 (or 14973209 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7681244931 is about 87642.7117962469. The cubic root of 7681244931 is about 1973.0762600887.

The spelling of 7681244931 in words is "seven billion, six hundred eighty-one million, two hundred forty-four thousand, nine hundred thirty-one".