20086498879 has 2 divisors, whose sum is σ = 20086498880. Its totient is φ = 20086498878.

The previous prime is 20086498849. The next prime is 20086498933. The reversal of 20086498879 is 97889468002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20086498879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20086498819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10043249439 + 10043249440.

It is an arithmetic number, because the mean of its divisors is an integer number (10043249440).

Almost surely, 2^20086498879 is an apocalyptic number.

20086498879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20086498879 is an equidigital number, since it uses as much as digits as its factorization.

20086498879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 20086498879 in words is "twenty billion, eighty-six million, four hundred ninety-eight thousand, eight hundred seventy-nine".