7677664231 has 2 divisors, whose sum is σ = 7677664232. Its totient is φ = 7677664230.

The previous prime is 7677664213. The next prime is 7677664249. The reversal of 7677664231 is 1324667767.

Together with previous prime (7677664213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (7677664213) and next prime (7677664249).

It is an emirp because it is prime and its reverse (1324667767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7677664231 - 2⁵ = 7677664199 is a prime.

It is a super-2 number, since 2×7677664231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7677664271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3838832115 + 3838832116.

It is an arithmetic number, because the mean of its divisors is an integer number (3838832116).

Almost surely, 2^7677664231 is an apocalyptic number.

7677664231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7677664231 is an equidigital number, since it uses as much as digits as its factorization.

7677664231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 49.

The square root of 7677664231 is about 87622.2815897874. The cubic root of 7677664231 is about 1972.7696217629.

The spelling of 7677664231 in words is "seven billion, six hundred seventy-seven million, six hundred sixty-four thousand, two hundred thirty-one".