235106856439 has 18 divisors (see below), whose sum is σ = 296147772720. Its totient is φ = 186018605136.

The previous prime is 235106856409. The next prime is 235106856443. The reversal of 235106856439 is 934658601532.

It is not a de Polignac number, because 235106856439 - 2²³ = 235098467831 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 (235106856409) 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, 14187279 + ... + 14203840.

It is an arithmetic number, because the mean of its divisors is an integer number (16452654040).

Almost surely, 2^235106856439 is an apocalyptic number.

235106856439 is a deficient number, since it is larger than the sum of its proper divisors (61040916281).

235106856439 is a wasteful number, since it uses less digits than its factorization.

235106856439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28391159 (or 28391139 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 235106856439 in words is "two hundred thirty-five billion, one hundred six million, eight hundred fifty-six thousand, four hundred thirty-nine".