40069549321 has 16 divisors (see below), whose sum is σ = 43774153920. Its totient is φ = 36527915520.

The previous prime is 40069549309. The next prime is 40069549327. The reversal of 40069549321 is 12394596004.

It is a cyclic number.

It is not a de Polignac number, because 40069549321 - 2⁹ = 40069548809 is a prime.

It is a super-2 number, since 2×40069549321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40069549327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109911 + ... + 303676.

It is an arithmetic number, because the mean of its divisors is an integer number (2735884620).

Almost surely, 2^40069549321 is an apocalyptic number.

40069549321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40069549321 is a deficient number, since it is larger than the sum of its proper divisors (3704604599).

40069549321 is a wasteful number, since it uses less digits than its factorization.

40069549321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413784.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 40069549321 in words is "forty billion, sixty-nine million, five hundred forty-nine thousand, three hundred twenty-one".