42721472343 has 16 divisors (see below), whose sum is σ = 62145510912. Its totient is φ = 25889640000.

The previous prime is 42721472303. The next prime is 42721472357. The reversal of 42721472343 is 34327412724.

It is not a de Polignac number, because 42721472343 - 2¹² = 42721468247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42721472303) 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 15 ways as a sum of consecutive naturals, for example, 405618 + ... + 499968.

It is an arithmetic number, because the mean of its divisors is an integer number (3884094432).

Almost surely, 2^42721472343 is an apocalyptic number.

42721472343 is a deficient number, since it is larger than the sum of its proper divisors (19424038569).

42721472343 is a wasteful number, since it uses less digits than its factorization.

42721472343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108086.

The product of its digits is 225792, while the sum is 39.

The spelling of 42721472343 in words is "forty-two billion, seven hundred twenty-one million, four hundred seventy-two thousand, three hundred forty-three".