40231621329 has 8 divisors (see below), whose sum is σ = 55091950080. Its totient is φ = 26096186736.

The previous prime is 40231621279. The next prime is 40231621361. The reversal of 40231621329 is 92312613204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40231621329 - 2²¹ = 40229524177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40231621329.

It is not an unprimeable number, because it can be changed into a prime (40231620329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181223409 + ... + 181223630.

It is an arithmetic number, because the mean of its divisors is an integer number (6886493760).

Almost surely, 2^40231621329 is an apocalyptic number.

It is an amenable number.

40231621329 is a deficient number, since it is larger than the sum of its proper divisors (14860328751).

40231621329 is a wasteful number, since it uses less digits than its factorization.

40231621329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362447079.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 40231621329 in words is "forty billion, two hundred thirty-one million, six hundred twenty-one thousand, three hundred twenty-nine".