7925653643 has 2 divisors, whose sum is σ = 7925653644. Its totient is φ = 7925653642.

The previous prime is 7925653639. The next prime is 7925653669. The reversal of 7925653643 is 3463565297.

It is a weak prime.

It is an emirp because it is prime and its reverse (3463565297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7925653643 - 2² = 7925653639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7925653591 and 7925653600.

It is not a weakly prime, because it can be changed into another prime (7925653343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3962826821 + 3962826822.

It is an arithmetic number, because the mean of its divisors is an integer number (3962826822).

Almost surely, 2^7925653643 is an apocalyptic number.

7925653643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7925653643 is an equidigital number, since it uses as much as digits as its factorization.

7925653643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 50.

The square root of 7925653643 is about 89026.1402229705. The cubic root of 7925653643 is about 1993.7851782487.

The spelling of 7925653643 in words is "seven billion, nine hundred twenty-five million, six hundred fifty-three thousand, six hundred forty-three".