426244043187 has 18 divisors (see below), whose sum is σ = 654033059108. Its totient is φ = 267447241152.

The previous prime is 426244043129. The next prime is 426244043191. The reversal of 426244043187 is 781340442624.

426244043187 is a `hidden beast` number, since 4 + 2 + 62 + 4 + 404 + 3 + 187 = 666.

It is not a de Polignac number, because 426244043187 - 2¹⁵ = 426244010419 is a prime.

It is a super-2 number, since 2×426244043187² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426244043587) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 81935893 + ... + 81941094.

Almost surely, 2^426244043187 is an apocalyptic number.

426244043187 is a deficient number, since it is larger than the sum of its proper divisors (227789015921).

426244043187 is a wasteful number, since it uses less digits than its factorization.

426244043187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163877027 (or 163877007 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 426244043187 in words is "four hundred twenty-six billion, two hundred forty-four million, forty-three thousand, one hundred eighty-seven".