7268798681 has 4 divisors (see below), whose sum is σ = 7696375092. Its totient is φ = 6841222272.

The previous prime is 7268798651. The next prime is 7268798689. The reversal of 7268798681 is 1868978627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1868978627 = 2423 ⋅771349.

It can be written as a sum of positive squares in 2 ways, for example, as 4275067456 + 2993731225 = 65384^2 + 54715^2 .

It is a cyclic number.

It is not a de Polignac number, because 7268798681 - 2¹⁸ = 7268536537 is a prime.

It is a super-2 number, since 2×7268798681² (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 (7268798689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213788180 + ... + 213788213.

It is an arithmetic number, because the mean of its divisors is an integer number (1924093773).

Almost surely, 2^7268798681 is an apocalyptic number.

It is an amenable number.

7268798681 is a deficient number, since it is larger than the sum of its proper divisors (427576411).

7268798681 is a wasteful number, since it uses less digits than its factorization.

7268798681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427576410.

The product of its digits is 16257024, while the sum is 62.

The square root of 7268798681 is about 85257.2500201596. The cubic root of 7268798681 is about 1937.1096897906.

The spelling of 7268798681 in words is "seven billion, two hundred sixty-eight million, seven hundred ninety-eight thousand, six hundred eighty-one".