40255334768 has 160 divisors (see below), whose sum is σ = 90744192000. Its totient is φ = 17126323200.

The previous prime is 40255334759. The next prime is 40255334843. The reversal of 40255334768 is 86743355204.

It is a super-2 number, since 2×40255334768² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32700713 + ... + 32701943.

It is an arithmetic number, because the mean of its divisors is an integer number (567151200).

Almost surely, 2^40255334768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40255334768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45372096000).

40255334768 is an abundant number, since it is smaller than the sum of its proper divisors (50488857232).

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

40255334768 is a wasteful number, since it uses less digits than its factorization.

40255334768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 40255334768 in words is "forty billion, two hundred fifty-five million, three hundred thirty-four thousand, seven hundred sixty-eight".