5445918749 has 2 divisors, whose sum is σ = 5445918750. Its totient is φ = 5445918748.

The previous prime is 5445918697. The next prime is 5445918761. The reversal of 5445918749 is 9478195445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4867852900 + 578065849 = 69770^2 + 24043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445918749 - 2⁸ = 5445918493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5445918694 and 5445918703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5445918649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722959374 + 2722959375.

It is an arithmetic number, because the mean of its divisors is an integer number (2722959375).

Almost surely, 2^5445918749 is an apocalyptic number.

It is an amenable number.

5445918749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445918749 is an equidigital number, since it uses as much as digits as its factorization.

5445918749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 56.

The square root of 5445918749 is about 73796.4684046601. The cubic root of 5445918749 is about 1759.3694742294.

The spelling of 5445918749 in words is "five billion, four hundred forty-five million, nine hundred eighteen thousand, seven hundred forty-nine".