426640567143 has 32 divisors (see below), whose sum is σ = 669480249856. Its totient is φ = 236569465728.

The previous prime is 426640567123. The next prime is 426640567159. The reversal of 426640567143 is 341765046624.

It is not a de Polignac number, because 426640567143 - 2¹⁴ = 426640550759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426640567092 and 426640567101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426640567123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446221 + ... + 1025862.

It is an arithmetic number, because the mean of its divisors is an integer number (20921257808).

Almost surely, 2^426640567143 is an apocalyptic number.

426640567143 is a deficient number, since it is larger than the sum of its proper divisors (242839682713).

426640567143 is a wasteful number, since it uses less digits than its factorization.

426640567143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472503.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 426640567143 in words is "four hundred twenty-six billion, six hundred forty million, five hundred sixty-seven thousand, one hundred forty-three".