40026266856 has 256 divisors, whose sum is σ = 123966720000. Its totient is φ = 11907979776.

The previous prime is 40026266809. The next prime is 40026266867. The reversal of 40026266856 is 65866262004.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6321100 + ... + 6327428.

It is an arithmetic number, because the mean of its divisors is an integer number (484245000).

Almost surely, 2^40026266856 is an apocalyptic number.

40026266856 is a gapful number since it is divisible by the number (46) 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 40026266856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61983360000).

40026266856 is an abundant number, since it is smaller than the sum of its proper divisors (83940453144).

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

40026266856 is a wasteful number, since it uses less digits than its factorization.

40026266856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453 (or 6443 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 40026266856 in words is "forty billion, twenty-six million, two hundred sixty-six thousand, eight hundred fifty-six".