228396510685 has 16 divisors (see below), whose sum is σ = 313584276096. Its totient is φ = 156437362368.

The previous prime is 228396510649. The next prime is 228396510709. The reversal of 228396510685 is 586015693822.

It is not a de Polignac number, because 228396510685 - 2²³ = 228388122077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3664234 + ... + 3726043.

It is an arithmetic number, because the mean of its divisors is an integer number (19599017256).

Almost surely, 2^228396510685 is an apocalyptic number.

It is an amenable number.

228396510685 is a deficient number, since it is larger than the sum of its proper divisors (85187765411).

228396510685 is an equidigital number, since it uses as much as digits as its factorization.

228396510685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7391172.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 228396510685 in words is "two hundred twenty-eight billion, three hundred ninety-six million, five hundred ten thousand, six hundred eighty-five".