40521004535 has 12 divisors (see below), whose sum is σ = 53447540664. Its totient is φ = 29469821040.

The previous prime is 40521004529. The next prime is 40521004547. The reversal of 40521004535 is 53540012504.

It is not a de Polignac number, because 40521004535 - 2²² = 40516810231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40521004498 and 40521004507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33487829 + ... + 33489038.

It is an arithmetic number, because the mean of its divisors is an integer number (4453961722).

Almost surely, 2^40521004535 is an apocalyptic number.

40521004535 is a deficient number, since it is larger than the sum of its proper divisors (12926536129).

40521004535 is a wasteful number, since it uses less digits than its factorization.

40521004535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66976894 (or 66976883 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 40521004535 in words is "forty billion, five hundred twenty-one million, four thousand, five hundred thirty-five".