40821442487168 has 64 divisors (see below), whose sum is σ = 92957655585120. Its totient is φ = 17491896207360.

The previous prime is 40821442487129. The next prime is 40821442487179. The reversal of 40821442487168 is 86178424412804.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302230 + ... + 9129002.

Almost surely, 2^{40821442487168} is an apocalyptic number.

It is an amenable number.

40821442487168 is an abundant number, since it is smaller than the sum of its proper divisors (52136213097952).

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

40821442487168 is an equidigital number, since it uses as much as digits as its factorization.

40821442487168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832615 (or 7832603 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 59.

The spelling of 40821442487168 in words is "forty trillion, eight hundred twenty-one billion, four hundred forty-two million, four hundred eighty-seven thousand, one hundred sixty-eight".