40811167811387 has 2 divisors, whose sum is σ = 40811167811388. Its totient is φ = 40811167811386.

The previous prime is 40811167811299. The next prime is 40811167811399. The reversal of 40811167811387 is 78311876111804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40811167811387 - 2⁸ = 40811167811131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40811167814387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20405583905693 + 20405583905694.

It is an arithmetic number, because the mean of its divisors is an integer number (20405583905694).

Almost surely, 2^{40811167811387} is an apocalyptic number.

40811167811387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40811167811387 is an equidigital number, since it uses as much as digits as its factorization.

40811167811387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 56.

The spelling of 40811167811387 in words is "forty trillion, eight hundred eleven billion, one hundred sixty-seven million, eight hundred eleven thousand, three hundred eighty-seven".