7400666291 has 2 divisors, whose sum is σ = 7400666292. Its totient is φ = 7400666290.

The previous prime is 7400666267. The next prime is 7400666293. The reversal of 7400666291 is 1926660047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7400666291 - 2⁶ = 7400666227 is a prime.

Together with 7400666293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7400666293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3700333145 + 3700333146.

It is an arithmetic number, because the mean of its divisors is an integer number (3700333146).

Almost surely, 2^7400666291 is an apocalyptic number.

7400666291 is a deficient number, since it is larger than the sum of its proper divisors (1).

7400666291 is an equidigital number, since it uses as much as digits as its factorization.

7400666291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 7400666291 is about 86027.1253210288. The cubic root of 7400666291 is about 1948.7536450179.

The spelling of 7400666291 in words is "seven billion, four hundred million, six hundred sixty-six thousand, two hundred ninety-one".