7669720651 has 2 divisors, whose sum is σ = 7669720652. Its totient is φ = 7669720650.

The previous prime is 7669720613. The next prime is 7669720661. The reversal of 7669720651 is 1560279667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7669720651 - 2⁷ = 7669720523 is a prime.

It is a super-2 number, since 2×7669720651² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7669720595 and 7669720604.

It is not a weakly prime, because it can be changed into another prime (7669720601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834860325 + 3834860326.

It is an arithmetic number, because the mean of its divisors is an integer number (3834860326).

Almost surely, 2^7669720651 is an apocalyptic number.

7669720651 is a deficient number, since it is larger than the sum of its proper divisors (1).

7669720651 is an equidigital number, since it uses as much as digits as its factorization.

7669720651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 7669720651 is about 87576.9413201900. The cubic root of 7669720651 is about 1972.0890214967.

The spelling of 7669720651 in words is "seven billion, six hundred sixty-nine million, seven hundred twenty thousand, six hundred fifty-one".