40255448321 has 4 divisors (see below), whose sum is σ = 43915034544. Its totient is φ = 36595862100.

The previous prime is 40255448297. The next prime is 40255448339. The reversal of 40255448321 is 12384455204.

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 40255448321 - 2³⁰ = 39181706497 is a prime.

It is a super-2 number, since 2×40255448321² (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 (40255448351) 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, 1829793095 + ... + 1829793116.

It is an arithmetic number, because the mean of its divisors is an integer number (10978758636).

Almost surely, 2^40255448321 is an apocalyptic number.

It is an amenable number.

40255448321 is a deficient number, since it is larger than the sum of its proper divisors (3659586223).

40255448321 is a wasteful number, since it uses less digits than its factorization.

40255448321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659586222.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 40255448321 in words is "forty billion, two hundred fifty-five million, four hundred forty-eight thousand, three hundred twenty-one".