42904252903 has 4 divisors (see below), whose sum is σ = 42905502720. Its totient is φ = 42903003088.

The previous prime is 42904252841. The next prime is 42904252907. The reversal of 42904252903 is 30925240924.

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 42904252903 - 2¹³ = 42904244711 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 (42904252907) 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, 571918 + ... + 642571.

It is an arithmetic number, because the mean of its divisors is an integer number (10726375680).

Almost surely, 2^42904252903 is an apocalyptic number.

42904252903 is a deficient number, since it is larger than the sum of its proper divisors (1249817).

42904252903 is a wasteful number, since it uses less digits than its factorization.

42904252903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249816.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 42904252903 in words is "forty-two billion, nine hundred four million, two hundred fifty-two thousand, nine hundred three".