201823876819 has 2 divisors, whose sum is σ = 201823876820. Its totient is φ = 201823876818.

The previous prime is 201823876799. The next prime is 201823876829. The reversal of 201823876819 is 918678328102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201823876819 - 2¹³ = 201823868627 is a prime.

It is a super-2 number, since 2×201823876819² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201823876819.

It is not a weakly prime, because it can be changed into another prime (201823876829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100911938409 + 100911938410.

It is an arithmetic number, because the mean of its divisors is an integer number (100911938410).

Almost surely, 2^201823876819 is an apocalyptic number.

201823876819 is a deficient number, since it is larger than the sum of its proper divisors (1).

201823876819 is an equidigital number, since it uses as much as digits as its factorization.

201823876819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 201823876819 in words is "two hundred one billion, eight hundred twenty-three million, eight hundred seventy-six thousand, eight hundred nineteen".