228515625799 has 4 divisors (see below), whose sum is σ = 229712042880. Its totient is φ = 227319208720.

The previous prime is 228515625749. The next prime is 228515626039. The reversal of 228515625799 is 997526515822.

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 228515625799 - 2²¹ = 228513528647 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 (228515625749) 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, 598208254 + ... + 598208635.

It is an arithmetic number, because the mean of its divisors is an integer number (57428010720).

Almost surely, 2^228515625799 is an apocalyptic number.

228515625799 is a deficient number, since it is larger than the sum of its proper divisors (1196417081).

228515625799 is a wasteful number, since it uses less digits than its factorization.

228515625799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196417080.

The product of its digits is 27216000, while the sum is 61.

The spelling of 228515625799 in words is "two hundred twenty-eight billion, five hundred fifteen million, six hundred twenty-five thousand, seven hundred ninety-nine".