7660698681 has 4 divisors (see below), whose sum is σ = 10214264912. Its totient is φ = 5107132452.

The previous prime is 7660698679. The next prime is 7660698739. The reversal of 7660698681 is 1868960667.

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 not a de Polignac number, because 7660698681 - 2¹ = 7660698679 is a prime.

It is a super-2 number, since 2×7660698681² (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 (7660698611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276783111 + ... + 1276783116.

It is an arithmetic number, because the mean of its divisors is an integer number (2553566228).

Almost surely, 2^7660698681 is an apocalyptic number.

It is an amenable number.

7660698681 is a deficient number, since it is larger than the sum of its proper divisors (2553566231).

7660698681 is a wasteful number, since it uses less digits than its factorization.

7660698681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553566230.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 7660698681 is about 87525.4173426211. The cubic root of 7660698681 is about 1971.3154553433.

The spelling of 7660698681 in words is "seven billion, six hundred sixty million, six hundred ninety-eight thousand, six hundred eighty-one".