40663887264 has 432 divisors, whose sum is σ = 156450542976. Its totient is φ = 9748823040.

The previous prime is 40663887259. The next prime is 40663887287. The reversal of 40663887264 is 46278836604.

40663887264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40663887264.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3164757 + ... + 3177579.

Almost surely, 2^40663887264 is an apocalyptic number.

40663887264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40663887264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78225271488).

40663887264 is an abundant number, since it is smaller than the sum of its proper divisors (115786655712).

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

40663887264 is a wasteful number, since it uses less digits than its factorization.

40663887264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12881 (or 12859 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 40663887264 in words is "forty billion, six hundred sixty-three million, eight hundred eighty-seven thousand, two hundred sixty-four".