20086498819 has 2 divisors, whose sum is σ = 20086498820. Its totient is φ = 20086498818.

The previous prime is 20086498811. The next prime is 20086498823. The reversal of 20086498819 is 91889468002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20086498819 - 2³ = 20086498811 is a prime.

It is a super-2 number, since 2×20086498819² (a number of 21 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 20086498819.

It is not a weakly prime, because it can be changed into another prime (20086498811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10043249409 + 10043249410.

It is an arithmetic number, because the mean of its divisors is an integer number (10043249410).

Almost surely, 2^20086498819 is an apocalyptic number.

20086498819 is a deficient number, since it is larger than the sum of its proper divisors (1).

20086498819 is an equidigital number, since it uses as much as digits as its factorization.

20086498819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 20086498819 in words is "twenty billion, eighty-six million, four hundred ninety-eight thousand, eight hundred nineteen".