40441776064 has 28 divisors (see below), whose sum is σ = 81267503200. Its totient is φ = 19964924928.

The previous prime is 40441776043. The next prime is 40441776073. The reversal of 40441776064 is 46067714404.

It is a self number, because there is not a number n which added to its sum of digits gives 40441776064.

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, 3994329 + ... + 4004440.

Almost surely, 2^40441776064 is an apocalyptic number.

It is an amenable number.

40441776064 is an abundant number, since it is smaller than the sum of its proper divisors (40825727136).

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

40441776064 is an equidigital number, since it uses as much as digits as its factorization.

40441776064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998860 (or 7998850 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 40441776064 in words is "forty billion, four hundred forty-one million, seven hundred seventy-six thousand, sixty-four".