4235772091 has 2 divisors, whose sum is σ = 4235772092. Its totient is φ = 4235772090.

The previous prime is 4235772083. The next prime is 4235772143. The reversal of 4235772091 is 1902775324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4235772091 - 2³ = 4235772083 is a prime.

It is not a weakly prime, because it can be changed into another prime (4235772001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117886045 + 2117886046.

It is an arithmetic number, because the mean of its divisors is an integer number (2117886046).

Almost surely, 2^4235772091 is an apocalyptic number.

4235772091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4235772091 is an equidigital number, since it uses as much as digits as its factorization.

4235772091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 4235772091 is about 65082.8094891424. The cubic root of 4235772091 is about 1617.9963150107.

The spelling of 4235772091 in words is "four billion, two hundred thirty-five million, seven hundred seventy-two thousand, ninety-one".