5268978401 has 2 divisors, whose sum is σ = 5268978402. Its totient is φ = 5268978400.

The previous prime is 5268978329. The next prime is 5268978431. The reversal of 5268978401 is 1048798625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3052452001 + 2216526400 = 55249^2 + 47080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5268978401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5268978401.

It is not a weakly prime, because it can be changed into another prime (5268978431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2634489200 + 2634489201.

It is an arithmetic number, because the mean of its divisors is an integer number (2634489201).

Almost surely, 2^5268978401 is an apocalyptic number.

It is an amenable number.

5268978401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5268978401 is an equidigital number, since it uses as much as digits as its factorization.

5268978401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 5268978401 is about 72587.7289974001. The cubic root of 5268978401 is about 1740.1050714945.

The spelling of 5268978401 in words is "five billion, two hundred sixty-eight million, nine hundred seventy-eight thousand, four hundred one".