40569512291 has 16 divisors (see below), whose sum is σ = 53242287360. Its totient is φ = 29948784480.

The previous prime is 40569512257. The next prime is 40569512323. The reversal of 40569512291 is 19221596504.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40569512291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40569515291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13863716 + ... + 13866641.

It is an arithmetic number, because the mean of its divisors is an integer number (3327642960).

Almost surely, 2^40569512291 is an apocalyptic number.

40569512291 is a deficient number, since it is larger than the sum of its proper divisors (12672775069).

40569512291 is a wasteful number, since it uses less digits than its factorization.

40569512291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27730394.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 40569512291 in words is "forty billion, five hundred sixty-nine million, five hundred twelve thousand, two hundred ninety-one".