5445978451 has 2 divisors, whose sum is σ = 5445978452. Its totient is φ = 5445978450.

The previous prime is 5445978443. The next prime is 5445978457. The reversal of 5445978451 is 1548795445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5445978451 - 2³ = 5445978443 is a prime.

It is not a weakly prime, because it can be changed into another prime (5445978457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722989225 + 2722989226.

It is an arithmetic number, because the mean of its divisors is an integer number (2722989226).

Almost surely, 2^5445978451 is an apocalyptic number.

5445978451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445978451 is an equidigital number, since it uses as much as digits as its factorization.

5445978451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 52.

The square root of 5445978451 is about 73796.8729080034. The cubic root of 5445978451 is about 1759.3759033554.

The spelling of 5445978451 in words is "five billion, four hundred forty-five million, nine hundred seventy-eight thousand, four hundred fifty-one".