42921068503 has 4 divisors (see below), whose sum is σ = 42922114200. Its totient is φ = 42920022808.

The previous prime is 42921068479. The next prime is 42921068513. The reversal of 42921068503 is 30586012924.

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 42921068503 - 2⁵ = 42921068471 is a prime.

It is a super-2 number, since 2×42921068503² (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 (42921068513) 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 3 ways as a sum of consecutive naturals, for example, 458653 + ... + 544246.

It is an arithmetic number, because the mean of its divisors is an integer number (10730528550).

Almost surely, 2^42921068503 is an apocalyptic number.

42921068503 is a deficient number, since it is larger than the sum of its proper divisors (1045697).

42921068503 is a wasteful number, since it uses less digits than its factorization.

42921068503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045696.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 42921068503 in words is "forty-two billion, nine hundred twenty-one million, sixty-eight thousand, five hundred three".