5451423349 has 2 divisors, whose sum is σ = 5451423350. Its totient is φ = 5451423348.

The previous prime is 5451423343. The next prime is 5451423457. The reversal of 5451423349 is 9433241545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5308142449 + 143280900 = 72857^2 + 11970^2 .

It is a cyclic number.

It is not a de Polignac number, because 5451423349 - 2¹¹ = 5451421301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5451423343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725711674 + 2725711675.

It is an arithmetic number, because the mean of its divisors is an integer number (2725711675).

Almost surely, 2^5451423349 is an apocalyptic number.

It is an amenable number.

5451423349 is a deficient number, since it is larger than the sum of its proper divisors (1).

5451423349 is an equidigital number, since it uses as much as digits as its factorization.

5451423349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 5451423349 is about 73833.7548076759. The cubic root of 5451423349 is about 1759.9620503396.

The spelling of 5451423349 in words is "five billion, four hundred fifty-one million, four hundred twenty-three thousand, three hundred forty-nine".