40405223147 has 4 divisors (see below), whose sum is σ = 40405630680. Its totient is φ = 40404815616.

The previous prime is 40405223107. The next prime is 40405223171. The reversal of 40405223147 is 74132250404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40405223147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40405223107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51788 + ... + 288950.

It is an arithmetic number, because the mean of its divisors is an integer number (10101407670).

Almost surely, 2^40405223147 is an apocalyptic number.

40405223147 is a deficient number, since it is larger than the sum of its proper divisors (407533).

40405223147 is a wasteful number, since it uses less digits than its factorization.

40405223147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407532.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 40405223147 in words is "forty billion, four hundred five million, two hundred twenty-three thousand, one hundred forty-seven".