228649061880 has 96 divisors (see below), whose sum is σ = 775418585760. Its totient is φ = 58322077440.

The previous prime is 228649061863. The next prime is 228649061881. The reversal of 228649061880 is 88160946822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228649061881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13799031 + ... + 13815590.

It is an arithmetic number, because the mean of its divisors is an integer number (8077276935).

Almost surely, 2^228649061880 is an apocalyptic number.

228649061880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228649061880 is an abundant number, since it is smaller than the sum of its proper divisors (546769523880).

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

228649061880 is a wasteful number, since it uses less digits than its factorization.

228649061880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27614661 (or 27614654 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 228649061880 in words is "two hundred twenty-eight billion, six hundred forty-nine million, sixty-one thousand, eight hundred eighty".