228899510469 has 48 divisors (see below), whose sum is σ = 394538040000. Its totient is φ = 130778934048.

The previous prime is 228899510461. The next prime is 228899510507. The reversal of 228899510469 is 964015998822.

228899510469 is a `hidden beast` number, since 2 + 2 + 8 + 89 + 95 + 1 + 0 + 469 = 666.

It is not a de Polignac number, because 228899510469 - 2³ = 228899510461 is a prime.

It is a super-2 number, since 2×228899510469² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228899510461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12889054 + ... + 12906800.

It is an arithmetic number, because the mean of its divisors is an integer number (8219542500).

Almost surely, 2^228899510469 is an apocalyptic number.

It is an amenable number.

228899510469 is a deficient number, since it is larger than the sum of its proper divisors (165638529531).

228899510469 is a wasteful number, since it uses less digits than its factorization.

228899510469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27519 (or 27506 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 228899510469 in words is "two hundred twenty-eight billion, eight hundred ninety-nine million, five hundred ten thousand, four hundred sixty-nine".