13098709891 has 2 divisors, whose sum is σ = 13098709892. Its totient is φ = 13098709890.

The previous prime is 13098709867. The next prime is 13098709901. The reversal of 13098709891 is 19890789031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13098709891 - 2¹³ = 13098701699 is a prime.

It is not a weakly prime, because it can be changed into another prime (13098706891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6549354945 + 6549354946.

It is an arithmetic number, because the mean of its divisors is an integer number (6549354946).

Almost surely, 2^13098709891 is an apocalyptic number.

13098709891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13098709891 is an equidigital number, since it uses as much as digits as its factorization.

13098709891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 13098709891 in words is "thirteen billion, ninety-eight million, seven hundred nine thousand, eight hundred ninety-one".