40790660321 has 4 divisors (see below), whose sum is σ = 42937537200. Its totient is φ = 38643783444.

The previous prime is 40790660299. The next prime is 40790660369. The reversal of 40790660321 is 12306609704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40790660321 - 2³⁰ = 39716918497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40790660381) 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 3 ways as a sum of consecutive naturals, for example, 1073438411 + ... + 1073438448.

It is an arithmetic number, because the mean of its divisors is an integer number (10734384300).

Almost surely, 2^40790660321 is an apocalyptic number.

It is an amenable number.

40790660321 is a deficient number, since it is larger than the sum of its proper divisors (2146876879).

40790660321 is a wasteful number, since it uses less digits than its factorization.

40790660321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146876878.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 40790660321 in words is "forty billion, seven hundred ninety million, six hundred sixty thousand, three hundred twenty-one".