42664725623 has 8 divisors (see below), whose sum is σ = 45972952368. Its totient is φ = 39360259584.

The previous prime is 42664725617. The next prime is 42664725647. The reversal of 42664725623 is 32652746624.

42664725623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42664725623 - 2³² = 38369758327 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 (42664721623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916586 + ... + 962007.

It is an arithmetic number, because the mean of its divisors is an integer number (5746619046).

Almost surely, 2^42664725623 is an apocalyptic number.

42664725623 is a deficient number, since it is larger than the sum of its proper divisors (3308226745).

42664725623 is a wasteful number, since it uses less digits than its factorization.

42664725623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880353.

The product of its digits is 2903040, while the sum is 47.

The spelling of 42664725623 in words is "forty-two billion, six hundred sixty-four million, seven hundred twenty-five thousand, six hundred twenty-three".