42723390911 has 4 divisors (see below), whose sum is σ = 42724882800. Its totient is φ = 42721899024.

The previous prime is 42723390851. The next prime is 42723390929. The reversal of 42723390911 is 11909332724.

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 42723390911 - 2¹⁴ = 42723374527 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 (42723390961) 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, 702131 + ... + 760548.

It is an arithmetic number, because the mean of its divisors is an integer number (10681220700).

Almost surely, 2^42723390911 is an apocalyptic number.

42723390911 is a deficient number, since it is larger than the sum of its proper divisors (1491889).

42723390911 is a wasteful number, since it uses less digits than its factorization.

42723390911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491888.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 42723390911 in words is "forty-two billion, seven hundred twenty-three million, three hundred ninety thousand, nine hundred eleven".