16835187423 has 4 divisors (see below), whose sum is σ = 22446916568. Its totient is φ = 11223458280.

The previous prime is 16835187409. The next prime is 16835187427. The reversal of 16835187423 is 32478153861.

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

It is not a de Polignac number, because 16835187423 - 2²⁶ = 16768078559 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 (16835187427) 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, 2805864568 + ... + 2805864573.

It is an arithmetic number, because the mean of its divisors is an integer number (5611729142).

Almost surely, 2^16835187423 is an apocalyptic number.

16835187423 is a deficient number, since it is larger than the sum of its proper divisors (5611729145).

16835187423 is an equidigital number, since it uses as much as digits as its factorization.

16835187423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611729144.

The product of its digits is 967680, while the sum is 48.

The spelling of 16835187423 in words is "sixteen billion, eight hundred thirty-five million, one hundred eighty-seven thousand, four hundred twenty-three".