228617633477 has 24 divisors (see below), whose sum is σ = 235985113728. Its totient is φ = 221445342720.

The previous prime is 228617633473. The next prime is 228617633521. The reversal of 228617633477 is 774336716822.

It is a happy number.

It is not a de Polignac number, because 228617633477 - 2² = 228617633473 is a prime.

It is a super-2 number, since 2×228617633477² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228617633473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113344373 + ... + 113346389.

It is an arithmetic number, because the mean of its divisors is an integer number (9832713072).

Almost surely, 2^228617633477 is an apocalyptic number.

It is an amenable number.

228617633477 is a deficient number, since it is larger than the sum of its proper divisors (7367480251).

228617633477 is an equidigital number, since it uses as much as digits as its factorization.

228617633477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589 (or 2528 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 56.

The spelling of 228617633477 in words is "two hundred twenty-eight billion, six hundred seventeen million, six hundred thirty-three thousand, four hundred seventy-seven".