40447227811 has 4 divisors (see below), whose sum is σ = 40468439592. Its totient is φ = 40426016032.

The previous prime is 40447227787. The next prime is 40447227817. The reversal of 40447227811 is 11872274404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40447227811 - 2¹⁵ = 40447195043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40447227817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10603030 + ... + 10606843.

It is an arithmetic number, because the mean of its divisors is an integer number (10117109898).

Almost surely, 2^40447227811 is an apocalyptic number.

40447227811 is a deficient number, since it is larger than the sum of its proper divisors (21211781).

40447227811 is a wasteful number, since it uses less digits than its factorization.

40447227811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211780.

The product of its (nonzero) digits is 100352, while the sum is 40.

The spelling of 40447227811 in words is "forty billion, four hundred forty-seven million, two hundred twenty-seven thousand, eight hundred eleven".