40448173055808 has 56 divisors (see below), whose sum is σ = 122307570910912. Its totient is φ = 11556620872704.

The previous prime is 40448173055761. The next prime is 40448173055809. The reversal of 40448173055808 is 80855037184404.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40448173055809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047682085 + ... + 15047684772.

Almost surely, 2^{40448173055808} is an apocalyptic number.

40448173055808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40448173055808 is an abundant number, since it is smaller than the sum of its proper divisors (81859397855104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40448173055808 is a wasteful number, since it uses less digits than its factorization.

40448173055808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30095366879 (or 30095366869 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 57.

The spelling of 40448173055808 in words is "forty trillion, four hundred forty-eight billion, one hundred seventy-three million, fifty-five thousand, eight hundred eight".