406985074423 has 4 divisors (see below), whose sum is σ = 408498030360. Its totient is φ = 405472118488.

The previous prime is 406985074411. The next prime is 406985074427. The reversal of 406985074423 is 324470589604.

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-406985074423 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 (406985074427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756477565 + ... + 756478102.

It is an arithmetic number, because the mean of its divisors is an integer number (102124507590).

Almost surely, 2^406985074423 is an apocalyptic number.

406985074423 is a deficient number, since it is larger than the sum of its proper divisors (1512955937).

406985074423 is a wasteful number, since it uses less digits than its factorization.

406985074423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512955936.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 406985074423 in words is "four hundred six billion, nine hundred eighty-five million, seventy-four thousand, four hundred twenty-three".