40817236636 has 12 divisors (see below), whose sum is σ = 77923815480. Its totient is φ = 18553289360.

The previous prime is 40817236633. The next prime is 40817236661. The reversal of 40817236636 is 63663271804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40817236633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463832191 + ... + 463832278.

It is an arithmetic number, because the mean of its divisors is an integer number (6493651290).

Almost surely, 2^40817236636 is an apocalyptic number.

It is an amenable number.

40817236636 is a deficient number, since it is larger than the sum of its proper divisors (37106578844).

40817236636 is a wasteful number, since it uses less digits than its factorization.

40817236636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927664484 (or 927664482 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 40817236636 in words is "forty billion, eight hundred seventeen million, two hundred thirty-six thousand, six hundred thirty-six".