2194914633889 has 2 divisors, whose sum is σ = 2194914633890. Its totient is φ = 2194914633888.

The previous prime is 2194914633883. The next prime is 2194914633907. The reversal of 2194914633889 is 9883364194912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1367105808289 + 827808825600 = 1169233^2 + 909840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194914633889 - 2³ = 2194914633881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2194914633881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097457316944 + 1097457316945.

It is an arithmetic number, because the mean of its divisors is an integer number (1097457316945).

Almost surely, 2^{2194914633889} is an apocalyptic number.

It is an amenable number.

2194914633889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194914633889 is an equidigital number, since it uses as much as digits as its factorization.

2194914633889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80621568, while the sum is 67.

The spelling of 2194914633889 in words is "two trillion, one hundred ninety-four billion, nine hundred fourteen million, six hundred thirty-three thousand, eight hundred eighty-nine".