42820367503 has 4 divisors (see below), whose sum is σ = 43731439200. Its totient is φ = 41909295808.

The previous prime is 42820367489. The next prime is 42820367509. The reversal of 42820367503 is 30576302824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42820367503 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 (42820367509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455535778 + ... + 455535871.

It is an arithmetic number, because the mean of its divisors is an integer number (10932859800).

Almost surely, 2^42820367503 is an apocalyptic number.

42820367503 is a deficient number, since it is larger than the sum of its proper divisors (911071697).

42820367503 is an equidigital number, since it uses as much as digits as its factorization.

42820367503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911071696.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 42820367503 in words is "forty-two billion, eight hundred twenty million, three hundred sixty-seven thousand, five hundred three".