40260221764 has 24 divisors (see below), whose sum is σ = 80531478720. Its totient is φ = 17252016096.

The previous prime is 40260221731. The next prime is 40260221777. The reversal of 40260221764 is 46712206204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117759 + ... + 307225.

It is an arithmetic number, because the mean of its divisors is an integer number (3355478280).

Almost surely, 2^40260221764 is an apocalyptic number.

It is an amenable number.

40260221764 is an abundant number, since it is smaller than the sum of its proper divisors (40271256956).

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

40260221764 is a wasteful number, since it uses less digits than its factorization.

40260221764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197067 (or 197065 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 40260221764 its reverse (46712206204), we get a palindrome (86972427968).

The spelling of 40260221764 in words is "forty billion, two hundred sixty million, two hundred twenty-one thousand, seven hundred sixty-four".