8399210051 has 2 divisors, whose sum is σ = 8399210052. Its totient is φ = 8399210050.

The previous prime is 8399210047. The next prime is 8399210069. The reversal of 8399210051 is 1500129938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8399210051 - 2² = 8399210047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8399209987 and 8399210014.

It is not a weakly prime, because it can be changed into another prime (8399210041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4199605025 + 4199605026.

It is an arithmetic number, because the mean of its divisors is an integer number (4199605026).

Almost surely, 2^8399210051 is an apocalyptic number.

8399210051 is a deficient number, since it is larger than the sum of its proper divisors (1).

8399210051 is an equidigital number, since it uses as much as digits as its factorization.

8399210051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 8399210051 is about 91647.2042726891. The cubic root of 8399210051 is about 2032.7289893078.

Adding to 8399210051 its reverse (1500129938), we get a palindrome (9899339989).

The spelling of 8399210051 in words is "eight billion, three hundred ninety-nine million, two hundred ten thousand, fifty-one".