40681618224 has 80 divisors (see below), whose sum is σ = 114042534144. Its totient is φ = 12421843200.

The previous prime is 40681618169. The next prime is 40681618249. The reversal of 40681618224 is 42281618604.

It is a super-2 number, since 2×40681618224² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167092 + ... + 330579.

Almost surely, 2^40681618224 is an apocalyptic number.

It is an amenable number.

40681618224 is an abundant number, since it is smaller than the sum of its proper divisors (73360915920).

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

40681618224 is a wasteful number, since it uses less digits than its factorization.

40681618224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497826 (or 497820 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 40681618224 in words is "forty billion, six hundred eighty-one million, six hundred eighteen thousand, two hundred twenty-four".