7664426233 has 4 divisors (see below), whose sum is σ = 7734742180. Its totient is φ = 7594110288.

The previous prime is 7664426227. The next prime is 7664426239. The reversal of 7664426233 is 3326244667.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7664426227) and next prime (7664426239).

It can be written as a sum of positive squares in 2 ways, for example, as 4682938624 + 2981487609 = 68432^2 + 54603^2 .

It is a cyclic number.

It is not a de Polignac number, because 7664426233 - 2⁹ = 7664425721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7664426233.

It is not an unprimeable number, because it can be changed into a prime (7664426239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35157810 + ... + 35158027.

It is an arithmetic number, because the mean of its divisors is an integer number (1933685545).

Almost surely, 2^7664426233 is an apocalyptic number.

It is an amenable number.

7664426233 is a deficient number, since it is larger than the sum of its proper divisors (70315947).

7664426233 is a wasteful number, since it uses less digits than its factorization.

7664426233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70315946.

The product of its digits is 870912, while the sum is 43.

The square root of 7664426233 is about 87546.7088644685. The cubic root of 7664426233 is about 1971.6351385152.

The spelling of 7664426233 in words is "seven billion, six hundred sixty-four million, four hundred twenty-six thousand, two hundred thirty-three".