40569512323 has 2 divisors, whose sum is σ = 40569512324. Its totient is φ = 40569512322.

The previous prime is 40569512257. The next prime is 40569512371. The reversal of 40569512323 is 32321596504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40569512323 - 2³³ = 31979577731 is a prime.

It is not a weakly prime, because it can be changed into another prime (40569512723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20284756161 + 20284756162.

It is an arithmetic number, because the mean of its divisors is an integer number (20284756162).

Almost surely, 2^40569512323 is an apocalyptic number.

40569512323 is a deficient number, since it is larger than the sum of its proper divisors (1).

40569512323 is an equidigital number, since it uses as much as digits as its factorization.

40569512323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 40569512323 in words is "forty billion, five hundred sixty-nine million, five hundred twelve thousand, three hundred twenty-three".