42723390920 has 64 divisors (see below), whose sum is σ = 109903409280. Its totient is φ = 14642251776.

The previous prime is 42723390851. The next prime is 42723390929. The reversal of 42723390920 is 2909332724.

It is not an unprimeable number, because it can be changed into a prime (42723390929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715247 + ... + 772673.

It is an arithmetic number, because the mean of its divisors is an integer number (1717240770).

Almost surely, 2^42723390920 is an apocalyptic number.

42723390920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42723390920 is an abundant number, since it is smaller than the sum of its proper divisors (67180018360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42723390920 is a wasteful number, since it uses less digits than its factorization.

42723390920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60102 (or 60098 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 42723390920 in words is "forty-two billion, seven hundred twenty-three million, three hundred ninety thousand, nine hundred twenty".