5451806839 has 2 divisors, whose sum is σ = 5451806840. Its totient is φ = 5451806838.

The previous prime is 5451806813. The next prime is 5451806849. The reversal of 5451806839 is 9386081545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5451806839 - 2⁵ = 5451806807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5451806792 and 5451806801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5451806849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725903419 + 2725903420.

It is an arithmetic number, because the mean of its divisors is an integer number (2725903420).

Almost surely, 2^5451806839 is an apocalyptic number.

5451806839 is a deficient number, since it is larger than the sum of its proper divisors (1).

5451806839 is an equidigital number, since it uses as much as digits as its factorization.

5451806839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 5451806839 is about 73836.3517449230. The cubic root of 5451806839 is about 1760.0033185845.

The spelling of 5451806839 in words is "five billion, four hundred fifty-one million, eight hundred six thousand, eight hundred thirty-nine".