40163631871823 has 2 divisors, whose sum is σ = 40163631871824. Its totient is φ = 40163631871822.

The previous prime is 40163631871807. The next prime is 40163631871841. The reversal of 40163631871823 is 32817813636104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40163631871823 - 2⁴ = 40163631871807 is a prime.

It is a super-2 number, since 2×40163631871823² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40163631871723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081815935911 + 20081815935912.

It is an arithmetic number, because the mean of its divisors is an integer number (20081815935912).

Almost surely, 2^{40163631871823} is an apocalyptic number.

40163631871823 is a deficient number, since it is larger than the sum of its proper divisors (1).

40163631871823 is an equidigital number, since it uses as much as digits as its factorization.

40163631871823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 40163631871823 in words is "forty trillion, one hundred sixty-three billion, six hundred thirty-one million, eight hundred seventy-one thousand, eight hundred twenty-three".