2194795651 has 2 divisors, whose sum is σ = 2194795652. Its totient is φ = 2194795650.

The previous prime is 2194795639. The next prime is 2194795657. The reversal of 2194795651 is 1565974912.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2194795651 - 2⁵ = 2194795619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2194795595 and 2194795604.

It is not a weakly prime, because it can be changed into another prime (2194795657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097397825 + 1097397826.

It is an arithmetic number, because the mean of its divisors is an integer number (1097397826).

Almost surely, 2^2194795651 is an apocalyptic number.

2194795651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194795651 is an equidigital number, since it uses as much as digits as its factorization.

2194795651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 49.

The square root of 2194795651 is about 46848.6462024251. The cubic root of 2194795651 is about 1299.5650716663.

The spelling of 2194795651 in words is "two billion, one hundred ninety-four million, seven hundred ninety-five thousand, six hundred fifty-one".