40817273167987 has 2 divisors, whose sum is σ = 40817273167988. Its totient is φ = 40817273167986.

The previous prime is 40817273167921. The next prime is 40817273167991. The reversal of 40817273167987 is 78976137271804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40817273167987 - 2⁷ = 40817273167859 is a prime.

It is not a weakly prime, because it can be changed into another prime (40817273167387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408636583993 + 20408636583994.

It is an arithmetic number, because the mean of its divisors is an integer number (20408636583994).

Almost surely, 2^{40817273167987} is an apocalyptic number.

40817273167987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40817273167987 is an equidigital number, since it uses as much as digits as its factorization.

40817273167987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 199148544, while the sum is 70.

The spelling of 40817273167987 in words is "forty trillion, eight hundred seventeen billion, two hundred seventy-three million, one hundred sixty-seven thousand, nine hundred eighty-seven".