7634508643 has 2 divisors, whose sum is σ = 7634508644. Its totient is φ = 7634508642.

The previous prime is 7634508641. The next prime is 7634508671. The reversal of 7634508643 is 3468054367.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7634508643 - 2¹ = 7634508641 is a prime.

Together with 7634508641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7634508593 and 7634508602.

It is not a weakly prime, because it can be changed into another prime (7634508641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817254321 + 3817254322.

It is an arithmetic number, because the mean of its divisors is an integer number (3817254322).

Almost surely, 2^7634508643 is an apocalyptic number.

7634508643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7634508643 is an equidigital number, since it uses as much as digits as its factorization.

7634508643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The square root of 7634508643 is about 87375.6753507519. The cubic root of 7634508643 is about 1969.0664100867.

The spelling of 7634508643 in words is "seven billion, six hundred thirty-four million, five hundred eight thousand, six hundred forty-three".