20089098391 has 2 divisors, whose sum is σ = 20089098392. Its totient is φ = 20089098390.

The previous prime is 20089098383. The next prime is 20089098409. The reversal of 20089098391 is 19389098002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20089098391 - 2³ = 20089098383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20089098091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044549195 + 10044549196.

It is an arithmetic number, because the mean of its divisors is an integer number (10044549196).

Almost surely, 2^20089098391 is an apocalyptic number.

20089098391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089098391 is an equidigital number, since it uses as much as digits as its factorization.

20089098391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 20089098391 in words is "twenty billion, eighty-nine million, ninety-eight thousand, three hundred ninety-one".