7468668643 has 2 divisors, whose sum is σ = 7468668644. Its totient is φ = 7468668642.

The previous prime is 7468668569. The next prime is 7468668661. The reversal of 7468668643 is 3468668647.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7468668643 - 2²⁹ = 6931797731 is a prime.

It is a super-2 number, since 2×7468668643² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7468668043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3734334321 + 3734334322.

It is an arithmetic number, because the mean of its divisors is an integer number (3734334322).

Almost surely, 2^7468668643 is an apocalyptic number.

7468668643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7468668643 is an equidigital number, since it uses as much as digits as its factorization.

7468668643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27869184, while the sum is 58.

The square root of 7468668643 is about 86421.4593894364. The cubic root of 7468668643 is about 1954.7042802468.

The spelling of 7468668643 in words is "seven billion, four hundred sixty-eight million, six hundred sixty-eight thousand, six hundred forty-three".