418199198623 has 2 divisors, whose sum is σ = 418199198624. Its totient is φ = 418199198622.

The previous prime is 418199198477. The next prime is 418199198657. The reversal of 418199198623 is 326891991814.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 418199198623 - 2²⁹ = 417662327711 is a prime.

It is a super-2 number, since 2×418199198623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418109198623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209099599311 + 209099599312.

It is an arithmetic number, because the mean of its divisors is an integer number (209099599312).

Almost surely, 2^418199198623 is an apocalyptic number.

418199198623 is a deficient number, since it is larger than the sum of its proper divisors (1).

418199198623 is an equidigital number, since it uses as much as digits as its factorization.

418199198623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 61.

The spelling of 418199198623 in words is "four hundred eighteen billion, one hundred ninety-nine million, one hundred ninety-eight thousand, six hundred twenty-three".