40836643876 has 12 divisors (see below), whose sum is σ = 81673287808. Its totient is φ = 17501418792.

The previous prime is 40836643829. The next prime is 40836643927. The reversal of 40836643876 is 67834663804.

40836643876 is an admirable number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 729225756 + ... + 729225811.

Almost surely, 2^40836643876 is an apocalyptic number.

It is an amenable number.

40836643876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40836643876 is a wasteful number, since it uses less digits than its factorization.

40836643876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458451578 (or 1458451576 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 55.

The spelling of 40836643876 in words is "forty billion, eight hundred thirty-six million, six hundred forty-three thousand, eight hundred seventy-six".