40236187851169 has 2 divisors, whose sum is σ = 40236187851170. Its totient is φ = 40236187851168.

The previous prime is 40236187851107. The next prime is 40236187851241. The reversal of 40236187851169 is 96115878163204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37191860811169 + 3044327040000 = 6098513^2 + 1744800^2 .

It is a cyclic number.

It is not a de Polignac number, because 40236187851169 - 2³³ = 40227597916577 is a prime.

It is a super-2 number, since 2×40236187851169² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40236187851269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118093925584 + 20118093925585.

It is an arithmetic number, because the mean of its divisors is an integer number (20118093925585).

It is a 1-persistent number, because it is pandigital, but 2⋅40236187851169 = 80472375702338 is not.

Almost surely, 2^{40236187851169} is an apocalyptic number.

It is an amenable number.

40236187851169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236187851169 is an equidigital number, since it uses as much as digits as its factorization.

40236187851169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 40236187851169 in words is "forty trillion, two hundred thirty-six billion, one hundred eighty-seven million, eight hundred fifty-one thousand, one hundred sixty-nine".