2278779210 has 128 divisors (see below), whose sum is σ = 6232412160. Its totient is φ = 592308288.

The previous prime is 2278779157. The next prime is 2278779227. The reversal of 2278779210 is 129778722.

2278779210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63 ways as a sum of consecutive naturals, for example, 1862659 + ... + 1863881.

It is an arithmetic number, because the mean of its divisors is an integer number (48690720).

Almost surely, 2^2278779210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278779210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3116206080).

2278779210 is an abundant number, since it is smaller than the sum of its proper divisors (3953632950).

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

2278779210 is a wasteful number, since it uses less digits than its factorization.

2278779210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 2278779210 is about 47736.5605170712. The cubic root of 2278779210 is about 1315.9339238295.

The spelling of 2278779210 in words is "two billion, two hundred seventy-eight million, seven hundred seventy-nine thousand, two hundred ten".