426536156523 has 8 divisors (see below), whose sum is σ = 570010355200. Its totient is φ = 283709697768.

The previous prime is 426536156513. The next prime is 426536156551. The reversal of 426536156523 is 325651635624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 426536156523 - 2¹⁴ = 426536140139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426536156513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161933443 + ... + 161936076.

It is an arithmetic number, because the mean of its divisors is an integer number (71251294400).

Almost surely, 2^426536156523 is an apocalyptic number.

426536156523 is a deficient number, since it is larger than the sum of its proper divisors (143474198677).

426536156523 is a wasteful number, since it uses less digits than its factorization.

426536156523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323869961.

The product of its digits is 3888000, while the sum is 48.

The spelling of 426536156523 in words is "four hundred twenty-six billion, five hundred thirty-six million, one hundred fifty-six thousand, five hundred twenty-three".