228621173760 has 528 divisors, whose sum is σ = 945155905920. Its totient is φ = 52254720000.

The previous prime is 228621173747. The next prime is 228621173789. The reversal of 228621173760 is 67371126822.

228621173760 is a `hidden beast` number, since 2 + 2 + 8 + 621 + 17 + 3 + 7 + 6 + 0 = 666.

It is a super-2 number, since 2×228621173760² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6756885 + ... + 6790635.

Almost surely, 2^228621173760 is an apocalyptic number.

228621173760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228621173760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472577952960).

228621173760 is an abundant number, since it is smaller than the sum of its proper divisors (716534732160).

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

228621173760 is a wasteful number, since it uses less digits than its factorization.

228621173760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33799 (or 33768 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 228621173760 in words is "two hundred twenty-eight billion, six hundred twenty-one million, one hundred seventy-three thousand, seven hundred sixty".