40020535499 has 32 divisors (see below), whose sum is σ = 49295485440. Its totient is φ = 31708334592.

The previous prime is 40020535493. The next prime is 40020535523. The reversal of 40020535499 is 99453502004.

It is a cyclic number.

It is not a de Polignac number, because 40020535499 - 2⁴ = 40020535483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40020535493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10199552 + ... + 10203474.

It is an arithmetic number, because the mean of its divisors is an integer number (1540483920).

Almost surely, 2^40020535499 is an apocalyptic number.

40020535499 is a deficient number, since it is larger than the sum of its proper divisors (9274949941).

40020535499 is a wasteful number, since it uses less digits than its factorization.

40020535499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 40020535499 in words is "forty billion, twenty million, five hundred thirty-five thousand, four hundred ninety-nine".