231807012605659 has 4 divisors (see below), whose sum is σ = 233474688955480. Its totient is φ = 230139336255840.

The previous prime is 231807012605657. The next prime is 231807012605681. The reversal of 231807012605659 is 956506210708132.

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 231807012605659 - 2¹ = 231807012605657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231807012605657) 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, 833838174702 + ... + 833838174979.

It is an arithmetic number, because the mean of its divisors is an integer number (58368672238870).

Almost surely, 2^{231807012605659} is an apocalyptic number.

231807012605659 is a deficient number, since it is larger than the sum of its proper divisors (1667676349821).

231807012605659 is a wasteful number, since it uses less digits than its factorization.

231807012605659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667676349820.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 231807012605659 in words is "two hundred thirty-one trillion, eight hundred seven billion, twelve million, six hundred five thousand, six hundred fifty-nine".