40821854000 has 80 divisors (see below), whose sum is σ = 101891502336. Its totient is φ = 15801984000.

The previous prime is 40821853997. The next prime is 40821854009. The reversal of 40821854000 is 45812804.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (40821854009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267209 + ... + 391208.

Almost surely, 2^40821854000 is an apocalyptic number.

40821854000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40821854000 is an abundant number, since it is smaller than the sum of its proper divisors (61069648336).

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

40821854000 is a wasteful number, since it uses less digits than its factorization.

40821854000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658471 (or 658455 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 40821854000 in words is "forty billion, eight hundred twenty-one million, eight hundred fifty-four thousand".