42641003623 has 4 divisors (see below), whose sum is σ = 42728562640. Its totient is φ = 42553444608.

The previous prime is 42641003611. The next prime is 42641003633. The reversal of 42641003623 is 32630014624.

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 42641003623 - 2²⁵ = 42607449191 is a prime.

It is a super-2 number, since 2×42641003623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42641003633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43778778 + ... + 43779751.

It is an arithmetic number, because the mean of its divisors is an integer number (10682140660).

Almost surely, 2^42641003623 is an apocalyptic number.

42641003623 is a deficient number, since it is larger than the sum of its proper divisors (87559017).

42641003623 is an equidigital number, since it uses as much as digits as its factorization.

42641003623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87559016.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 42641003623 in words is "forty-two billion, six hundred forty-one million, three thousand, six hundred twenty-three".