40569072191 has 2 divisors, whose sum is σ = 40569072192. Its totient is φ = 40569072190.

The previous prime is 40569072143. The next prime is 40569072223. The reversal of 40569072191 is 19127096504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40569072191 - 2⁶ = 40569072127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40569074191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20284536095 + 20284536096.

It is an arithmetic number, because the mean of its divisors is an integer number (20284536096).

Almost surely, 2^40569072191 is an apocalyptic number.

40569072191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40569072191 is an equidigital number, since it uses as much as digits as its factorization.

40569072191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 40569072191 in words is "forty billion, five hundred sixty-nine million, seventy-two thousand, one hundred ninety-one".