40421163744 has 72 divisors (see below), whose sum is σ = 123789825432. Its totient is φ = 12437280000.

The previous prime is 40421163737. The next prime is 40421163773. The reversal of 40421163744 is 44736112404.

40421163744 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 11 + 637 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40421163699 and 40421163708.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5394382 + ... + 5401869.

It is an arithmetic number, because the mean of its divisors is an integer number (1719303131).

Almost surely, 2^40421163744 is an apocalyptic number.

It is an amenable number.

40421163744 is an abundant number, since it is smaller than the sum of its proper divisors (83368661688).

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

40421163744 is a wasteful number, since it uses less digits than its factorization.

40421163744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10796280 (or 10796269 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 40421163744 in words is "forty billion, four hundred twenty-one million, one hundred sixty-three thousand, seven hundred forty-four".