7646252291 has 2 divisors, whose sum is σ = 7646252292. Its totient is φ = 7646252290.

The previous prime is 7646252287. The next prime is 7646252351. The reversal of 7646252291 is 1922526467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7646252291 - 2² = 7646252287 is a prime.

It is not a weakly prime, because it can be changed into another prime (7646252261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3823126145 + 3823126146.

It is an arithmetic number, because the mean of its divisors is an integer number (3823126146).

Almost surely, 2^7646252291 is an apocalyptic number.

7646252291 is a deficient number, since it is larger than the sum of its proper divisors (1).

7646252291 is an equidigital number, since it uses as much as digits as its factorization.

7646252291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 7646252291 is about 87442.8515717551. The cubic root of 7646252291 is about 1970.0755200506.

The spelling of 7646252291 in words is "seven billion, six hundred forty-six million, two hundred fifty-two thousand, two hundred ninety-one".