228363634287936 has 84 divisors (see below), whose sum is σ = 748072143285792. Its totient is φ = 65246752652544.

The previous prime is 228363634287857. The next prime is 228363634287941. The reversal of 228363634287936 is 639782436363822.

228363634287936 is a `hidden beast` number, since 2 + 2 + 8 + 363 + 63 + 42 + 87 + 93 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28318899030 + ... + 28318907093.

Almost surely, 2^{228363634287936} is an apocalyptic number.

It is an amenable number.

228363634287936 is an abundant number, since it is smaller than the sum of its proper divisors (519708508997856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228363634287936 is a wasteful number, since it uses less digits than its factorization.

228363634287936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56637806148 (or 56637806135 counting only the distinct ones).

The product of its digits is 2257403904, while the sum is 72.

The spelling of 228363634287936 in words is "two hundred twenty-eight trillion, three hundred sixty-three billion, six hundred thirty-four million, two hundred eighty-seven thousand, nine hundred thirty-six".