2190398130887 has 2 divisors, whose sum is σ = 2190398130888. Its totient is φ = 2190398130886.

The previous prime is 2190398130881. The next prime is 2190398130911. The reversal of 2190398130887 is 7880318930912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2190398130887 - 2¹⁴ = 2190398114503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190398130881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095199065443 + 1095199065444.

It is an arithmetic number, because the mean of its divisors is an integer number (1095199065444).

Almost surely, 2^{2190398130887} is an apocalyptic number.

2190398130887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190398130887 is an equidigital number, since it uses as much as digits as its factorization.

2190398130887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 2190398130887 in words is "two trillion, one hundred ninety billion, three hundred ninety-eight million, one hundred thirty thousand, eight hundred eighty-seven".