40824572864 has 56 divisors (see below), whose sum is σ = 82255766400. Its totient is φ = 20099439360.

The previous prime is 40824572819. The next prime is 40824572869. The reversal of 40824572864 is 46827542804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40824572869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3898067 + ... + 3908525.

Almost surely, 2^40824572864 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 40824572864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41127883200).

40824572864 is an abundant number, since it is smaller than the sum of its proper divisors (41431193536).

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

40824572864 is a wasteful number, since it uses less digits than its factorization.

40824572864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401 (or 11391 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 40824572864 in words is "forty billion, eight hundred twenty-four million, five hundred seventy-two thousand, eight hundred sixty-four".