40365345808 has 20 divisors (see below), whose sum is σ = 78214422528. Its totient is φ = 20180978720.

The previous prime is 40365345781. The next prime is 40365345817. The reversal of 40365345808 is 80854356304.

It is a super-2 number, since 2×40365345808² (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 3 ways as a sum of consecutive naturals, for example, 103185 + ... + 302287.

Almost surely, 2^40365345808 is an apocalyptic number.

It is an amenable number.

40365345808 is a deficient number, since it is larger than the sum of its proper divisors (37849076720).

40365345808 is a wasteful number, since it uses less digits than its factorization.

40365345808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211782 (or 211776 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 40365345808 in words is "forty billion, three hundred sixty-five million, three hundred forty-five thousand, eight hundred eight".