40168355841854 has 8 divisors (see below), whose sum is σ = 60255238283760. Its totient is φ = 20083276413936.

The previous prime is 40168355841847. The next prime is 40168355841871. The reversal of 40168355841854 is 45814855386104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40168355841854² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450697799 + ... + 450786914.

It is an arithmetic number, because the mean of its divisors is an integer number (7531904785470).

Almost surely, 2^{40168355841854} is an apocalyptic number.

40168355841854 is a deficient number, since it is larger than the sum of its proper divisors (20086882441906).

40168355841854 is a wasteful number, since it uses less digits than its factorization.

40168355841854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901506994.

The product of its (nonzero) digits is 73728000, while the sum is 62.

The spelling of 40168355841854 in words is "forty trillion, one hundred sixty-eight billion, three hundred fifty-five million, eight hundred forty-one thousand, eight hundred fifty-four".