5451739897 has 2 divisors, whose sum is σ = 5451739898. Its totient is φ = 5451739896.

The previous prime is 5451739753. The next prime is 5451739903. The reversal of 5451739897 is 7989371545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3031493481 + 2420246416 = 55059^2 + 49196^2 .

It is a cyclic number.

It is not a de Polignac number, because 5451739897 - 2²³ = 5443351289 is a prime.

It is not a weakly prime, because it can be changed into another prime (5451731897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725869948 + 2725869949.

It is an arithmetic number, because the mean of its divisors is an integer number (2725869949).

Almost surely, 2^5451739897 is an apocalyptic number.

It is an amenable number.

5451739897 is a deficient number, since it is larger than the sum of its proper divisors (1).

5451739897 is an equidigital number, since it uses as much as digits as its factorization.

5451739897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9525600, while the sum is 58.

The square root of 5451739897 is about 73835.8984302351. The cubic root of 5451739897 is about 1759.9961149406.

The spelling of 5451739897 in words is "five billion, four hundred fifty-one million, seven hundred thirty-nine thousand, eight hundred ninety-seven".