227889026778 has 32 divisors (see below), whose sum is σ = 522811330560. Its totient is φ = 64870884720.

The previous prime is 227889026767. The next prime is 227889026797. The reversal of 227889026778 is 877620988722.

It is a super-2 number, since 2×227889026778² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9999558 + ... + 10022321.

It is an arithmetic number, because the mean of its divisors is an integer number (16337854080).

Almost surely, 2^227889026778 is an apocalyptic number.

227889026778 is an abundant number, since it is smaller than the sum of its proper divisors (294922303782).

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

227889026778 is a wasteful number, since it uses less digits than its factorization.

227889026778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022162.

The product of its (nonzero) digits is 75866112, while the sum is 66.

The spelling of 227889026778 in words is "two hundred twenty-seven billion, eight hundred eighty-nine million, twenty-six thousand, seven hundred seventy-eight".