5478668401 has 2 divisors, whose sum is σ = 5478668402. Its totient is φ = 5478668400.

The previous prime is 5478668281. The next prime is 5478668423. The reversal of 5478668401 is 1048668745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5058623376 + 420045025 = 71124^2 + 20495^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478668401 - 2⁹ = 5478667889 is a prime.

It is a super-3 number, since 3×5478668401³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (5478668441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2739334200 + 2739334201.

It is an arithmetic number, because the mean of its divisors is an integer number (2739334201).

Almost surely, 2^5478668401 is an apocalyptic number.

It is an amenable number.

5478668401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5478668401 is an equidigital number, since it uses as much as digits as its factorization.

5478668401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 5478668401 is about 74018.0275405931. The cubic root of 5478668401 is about 1762.8891511383.

The spelling of 5478668401 in words is "five billion, four hundred seventy-eight million, six hundred sixty-eight thousand, four hundred one".