51029818199 has 2 divisors, whose sum is σ = 51029818200. Its totient is φ = 51029818198.

The previous prime is 51029818183. The next prime is 51029818253. The reversal of 51029818199 is 99181892015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51029818199 - 2⁴ = 51029818183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51029818199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51029817199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25514909099 + 25514909100.

It is an arithmetic number, because the mean of its divisors is an integer number (25514909100).

Almost surely, 2^51029818199 is an apocalyptic number.

51029818199 is a deficient number, since it is larger than the sum of its proper divisors (1).

51029818199 is an equidigital number, since it uses as much as digits as its factorization.

51029818199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 53.

The spelling of 51029818199 in words is "fifty-one billion, twenty-nine million, eight hundred eighteen thousand, one hundred ninety-nine".