228619859546 has 16 divisors (see below), whose sum is σ = 371494271400. Its totient is φ = 105516856224.

The previous prime is 228619859543. The next prime is 228619859579. The reversal of 228619859546 is 645958916822.

It can be written as a sum of positive squares in 4 ways, for example, as 2318904025 + 226300955521 = 48155^2 + 475711^2 .

It is a super-2 number, since 2×228619859546² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228619859543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26010611 + ... + 26019398.

Almost surely, 2^228619859546 is an apocalyptic number.

228619859546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

228619859546 is a deficient number, since it is larger than the sum of its proper divisors (142874411854).

228619859546 is an equidigital number, since it uses as much as digits as its factorization.

228619859546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52030050 (or 52030024 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 65.

The spelling of 228619859546 in words is "two hundred twenty-eight billion, six hundred nineteen million, eight hundred fifty-nine thousand, five hundred forty-six".