40329572544 has 224 divisors, whose sum is σ = 120241405440. Its totient is φ = 13253981184.

The previous prime is 40329572531. The next prime is 40329572561. The reversal of 40329572544 is 44527592304.

40329572544 is a `hidden beast` number, since 4 + 0 + 3 + 29 + 572 + 54 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40329572544.

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, 61760122 + ... + 61760774.

Almost surely, 2^40329572544 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 40329572544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60120702720).

40329572544 is an abundant number, since it is smaller than the sum of its proper divisors (79911832896).

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

40329572544 is a wasteful number, since it uses less digits than its factorization.

40329572544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 40329572544 in words is "forty billion, three hundred twenty-nine million, five hundred seventy-two thousand, five hundred forty-four".