42291687903 has 8 divisors (see below), whose sum is σ = 57764256816. Its totient is φ = 27506788800.

The previous prime is 42291687901. The next prime is 42291687953. The reversal of 42291687903 is 30978619224.

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

It is not a de Polignac number, because 42291687903 - 2¹ = 42291687901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42291687901) 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 7 ways as a sum of consecutive naturals, for example, 171917308 + ... + 171917553.

It is an arithmetic number, because the mean of its divisors is an integer number (7220532102).

Almost surely, 2^42291687903 is an apocalyptic number.

42291687903 is a deficient number, since it is larger than the sum of its proper divisors (15472568913).

42291687903 is a wasteful number, since it uses less digits than its factorization.

42291687903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343834905.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 42291687903 in words is "forty-two billion, two hundred ninety-one million, six hundred eighty-seven thousand, nine hundred three".