2091954629 has 2 divisors, whose sum is σ = 2091954630. Its totient is φ = 2091954628.

The previous prime is 2091954611. The next prime is 2091954677. The reversal of 2091954629 is 9264591902.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050408100 + 1041546529 = 32410^2 + 32273^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091954629 - 2⁸ = 2091954373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091954829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045977314 + 1045977315.

It is an arithmetic number, because the mean of its divisors is an integer number (1045977315).

Almost surely, 2^2091954629 is an apocalyptic number.

It is an amenable number.

2091954629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091954629 is an equidigital number, since it uses as much as digits as its factorization.

2091954629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 2091954629 is about 45737.8905176004. The cubic root of 2091954629 is about 1278.9417174339.

The spelling of 2091954629 in words is "two billion, ninety-one million, nine hundred fifty-four thousand, six hundred twenty-nine".