228077530723218 has 64 divisors (see below), whose sum is σ = 511101720299520. Its totient is φ = 67242666456000.

The previous prime is 228077530723193. The next prime is 228077530723247. The reversal of 228077530723218 is 812327035770822.

It is a super-2 number, since 2×228077530723218² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40976103 + ... + 46208181.

It is an arithmetic number, because the mean of its divisors is an integer number (7985964379680).

Almost surely, 2^{228077530723218} is an apocalyptic number.

228077530723218 is an abundant number, since it is smaller than the sum of its proper divisors (283024189576302).

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

228077530723218 is a wasteful number, since it uses less digits than its factorization.

228077530723218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249983.

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 228077530723218 in words is "two hundred twenty-eight trillion, seventy-seven billion, five hundred thirty million, seven hundred twenty-three thousand, two hundred eighteen".