40523605504 has 80 divisors (see below), whose sum is σ = 81598572000. Its totient is φ = 20104740864.

The previous prime is 40523605487. The next prime is 40523605519. The reversal of 40523605504 is 40550632504.

It is a self number, because there is not a number n which added to its sum of digits gives 40523605504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67651797 + ... + 67652395.

It is an arithmetic number, because the mean of its divisors is an integer number (1019982150).

Almost surely, 2^40523605504 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 40523605504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40799286000).

40523605504 is an abundant number, since it is smaller than the sum of its proper divisors (41074966496).

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

40523605504 is an equidigital number, since it uses as much as digits as its factorization.

40523605504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 40523605504 in words is "forty billion, five hundred twenty-three million, six hundred five thousand, five hundred four".