2138194629899 has 2 divisors, whose sum is σ = 2138194629900. Its totient is φ = 2138194629898.

The previous prime is 2138194629871. The next prime is 2138194629913. The reversal of 2138194629899 is 9989264918312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2138194629899 is a prime.

It is not a weakly prime, because it can be changed into another prime (2138194629839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069097314949 + 1069097314950.

It is an arithmetic number, because the mean of its divisors is an integer number (1069097314950).

Almost surely, 2^{2138194629899} is an apocalyptic number.

2138194629899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138194629899 is an equidigital number, since it uses as much as digits as its factorization.

2138194629899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120932352, while the sum is 71.

The spelling of 2138194629899 in words is "two trillion, one hundred thirty-eight billion, one hundred ninety-four million, six hundred twenty-nine thousand, eight hundred ninety-nine".