229805277969491 has 4 divisors (see below), whose sum is σ = 262634603393712. Its totient is φ = 196975952545272.

The previous prime is 229805277969467. The next prime is 229805277969521. The reversal of 229805277969491 is 194969772508922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229805277969491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229805277909491) 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, 16414662712100 + ... + 16414662712113.

It is an arithmetic number, because the mean of its divisors is an integer number (65658650848428).

Almost surely, 2^{229805277969491} is an apocalyptic number.

229805277969491 is a deficient number, since it is larger than the sum of its proper divisors (32829325424221).

229805277969491 is an equidigital number, since it uses as much as digits as its factorization.

229805277969491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32829325424220.

The product of its (nonzero) digits is 2469035520, while the sum is 80.

The spelling of 229805277969491 in words is "two hundred twenty-nine trillion, eight hundred five billion, two hundred seventy-seven million, nine hundred sixty-nine thousand, four hundred ninety-one".