7299397681 has 4 divisors (see below), whose sum is σ = 7391795200. Its totient is φ = 7207000164.

The previous prime is 7299397673. The next prime is 7299397709. The reversal of 7299397681 is 1867939927.

7299397681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7299397681 - 2³ = 7299397673 is a prime.

It is a super-2 number, since 2×7299397681² (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 (7299397631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46198641 + ... + 46198798.

It is an arithmetic number, because the mean of its divisors is an integer number (1847948800).

Almost surely, 2^7299397681 is an apocalyptic number.

It is an amenable number.

7299397681 is a deficient number, since it is larger than the sum of its proper divisors (92397519).

7299397681 is an equidigital number, since it uses as much as digits as its factorization.

7299397681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92397518.

The product of its digits is 10287648, while the sum is 61.

The square root of 7299397681 is about 85436.5125751280. The cubic root of 7299397681 is about 1939.8240603721.

The spelling of 7299397681 in words is "seven billion, two hundred ninety-nine million, three hundred ninety-seven thousand, six hundred eighty-one".