40447007671 has 4 divisors (see below), whose sum is σ = 46225151632. Its totient is φ = 34668863712.

The previous prime is 40447007659. The next prime is 40447007683. The reversal of 40447007671 is 17670074404.

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

It is an interprime number because it is at equal distance from previous prime (40447007659) and next prime (40447007683).

It is not a de Polignac number, because 40447007671 - 2¹¹ = 40447005623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447007651) 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, 2889071970 + ... + 2889071983.

It is an arithmetic number, because the mean of its divisors is an integer number (11556287908).

Almost surely, 2^40447007671 is an apocalyptic number.

40447007671 is a deficient number, since it is larger than the sum of its proper divisors (5778143961).

40447007671 is an equidigital number, since it uses as much as digits as its factorization.

40447007671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778143960.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 40447007671 in words is "forty billion, four hundred forty-seven million, seven thousand, six hundred seventy-one".