40163217472281 has 4 divisors (see below), whose sum is σ = 53550956629712. Its totient is φ = 26775478314852.

The previous prime is 40163217472271. The next prime is 40163217472291. The reversal of 40163217472281 is 18227471236104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40163217472271) and next prime (40163217472291).

It is not a de Polignac number, because 40163217472281 - 2³⁷ = 40025778518809 is a prime.

It is a super-2 number, since 2×40163217472281² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40163217472281.

It is not an unprimeable number, because it can be changed into a prime (40163217472271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6693869578711 + ... + 6693869578716.

It is an arithmetic number, because the mean of its divisors is an integer number (13387739157428).

Almost surely, 2^{40163217472281} is an apocalyptic number.

It is an amenable number.

40163217472281 is a deficient number, since it is larger than the sum of its proper divisors (13387739157431).

40163217472281 is a wasteful number, since it uses less digits than its factorization.

40163217472281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13387739157430.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 40163217472281 in words is "forty trillion, one hundred sixty-three billion, two hundred seventeen million, four hundred seventy-two thousand, two hundred eighty-one".