2278011888 has 60 divisors (see below), whose sum is σ = 6421859808. Its totient is φ = 753788160.

The previous prime is 2278011863. The next prime is 2278011907. The reversal of 2278011888 is 8881108722.

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, 38008 + ... + 77463.

Almost surely, 2^2278011888 is an apocalyptic number.

It is an amenable number.

2278011888 is an abundant number, since it is smaller than the sum of its proper divisors (4143847920).

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

2278011888 is a wasteful number, since it uses less digits than its factorization.

2278011888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115622 (or 115613 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The square root of 2278011888 is about 47728.5227929799. The cubic root of 2278011888 is about 1315.7862046176.

The spelling of 2278011888 in words is "two billion, two hundred seventy-eight million, eleven thousand, eight hundred eighty-eight".