7788264401 has 2 divisors, whose sum is σ = 7788264402. Its totient is φ = 7788264400.

The previous prime is 7788264377. The next prime is 7788264431. The reversal of 7788264401 is 1044628877.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5123123776 + 2665140625 = 71576^2 + 51625^2 .

It is an emirp because it is prime and its reverse (1044628877) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7788264401 is a prime.

It is not a weakly prime, because it can be changed into another prime (7788264431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3894132200 + 3894132201.

It is an arithmetic number, because the mean of its divisors is an integer number (3894132201).

Almost surely, 2^7788264401 is an apocalyptic number.

It is an amenable number.

7788264401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7788264401 is an equidigital number, since it uses as much as digits as its factorization.

7788264401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 7788264401 is about 88251.1439076004. The cubic root of 7788264401 is about 1982.1973701224.

The spelling of 7788264401 in words is "seven billion, seven hundred eighty-eight million, two hundred sixty-four thousand, four hundred one".