5451264449 has 2 divisors, whose sum is σ = 5451264450. Its totient is φ = 5451264448.

The previous prime is 5451264443. The next prime is 5451264551. The reversal of 5451264449 is 9444621545.

It is a happy number.

5451264449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5416960000 + 34304449 = 73600^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 5451264449 - 2⁴ = 5451264433 is a prime.

It is not a weakly prime, because it can be changed into another prime (5451264443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725632224 + 2725632225.

It is an arithmetic number, because the mean of its divisors is an integer number (2725632225).

Almost surely, 2^5451264449 is an apocalyptic number.

It is an amenable number.

5451264449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5451264449 is an equidigital number, since it uses as much as digits as its factorization.

5451264449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 44.

The square root of 5451264449 is about 73832.6787337423. The cubic root of 5451264449 is about 1759.9449501764.

The spelling of 5451264449 in words is "five billion, four hundred fifty-one million, two hundred sixty-four thousand, four hundred forty-nine".