2194101964979 has 2 divisors, whose sum is σ = 2194101964980. Its totient is φ = 2194101964978.

The previous prime is 2194101964969. The next prime is 2194101964981. The reversal of 2194101964979 is 9794691014912.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2194101964979 is a prime.

Together with 2194101964981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2194101964919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097050982489 + 1097050982490.

It is an arithmetic number, because the mean of its divisors is an integer number (1097050982490).

Almost surely, 2^{2194101964979} is an apocalyptic number.

2194101964979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194101964979 is an equidigital number, since it uses as much as digits as its factorization.

2194101964979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The spelling of 2194101964979 in words is "two trillion, one hundred ninety-four billion, one hundred one million, nine hundred sixty-four thousand, nine hundred seventy-nine".