228503990743 has 4 divisors (see below), whose sum is σ = 261147418000. Its totient is φ = 195860563488.

The previous prime is 228503990731. The next prime is 228503990749. The reversal of 228503990743 is 347099305822.

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 228503990743 - 2¹⁷ = 228503859671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228503990749) 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, 16321713618 + ... + 16321713631.

It is an arithmetic number, because the mean of its divisors is an integer number (65286854500).

Almost surely, 2^228503990743 is an apocalyptic number.

228503990743 is a deficient number, since it is larger than the sum of its proper divisors (32643427257).

228503990743 is an equidigital number, since it uses as much as digits as its factorization.

228503990743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32643427256.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 228503990743 in words is "two hundred twenty-eight billion, five hundred three million, nine hundred ninety thousand, seven hundred forty-three".