40635866268 has 48 divisors (see below), whose sum is σ = 106284598560. Its totient is φ = 13425414912.

The previous prime is 40635866261. The next prime is 40635866269. The reversal of 40635866268 is 86266853604.

It is a happy number.

40635866268 is a `hidden beast` number, since 4 + 0 + 6 + 3 + 5 + 8 + 6 + 626 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40635866261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652655 + ... + 1677062.

It is an arithmetic number, because the mean of its divisors is an integer number (2214262470).

Almost surely, 2^40635866268 is an apocalyptic number.

It is an amenable number.

40635866268 is an abundant number, since it is smaller than the sum of its proper divisors (65648732292).

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

40635866268 is a wasteful number, since it uses less digits than its factorization.

40635866268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329843 (or 3329835 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 40635866268 in words is "forty billion, six hundred thirty-five million, eight hundred sixty-six thousand, two hundred sixty-eight".