4408666666431 has 4 divisors (see below), whose sum is σ = 5878222221912. Its totient is φ = 2939111110952.

The previous prime is 4408666666429. The next prime is 4408666666451. The reversal of 4408666666431 is 1346666668044.

It is a happy number.

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 4408666666431 - 2¹ = 4408666666429 is a prime.

It is a super-2 number, since 2×4408666666431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4408666666451) 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, 734777777736 + ... + 734777777741.

It is an arithmetic number, because the mean of its divisors is an integer number (1469555555478).

Almost surely, 2^{4408666666431} is an apocalyptic number.

4408666666431 is a deficient number, since it is larger than the sum of its proper divisors (1469555555481).

4408666666431 is a wasteful number, since it uses less digits than its factorization.

4408666666431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469555555480.

The product of its (nonzero) digits is 71663616, while the sum is 60.

The spelling of 4408666666431 in words is "four trillion, four hundred eight billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred thirty-one".