2778527232 has 160 divisors (see below), whose sum is σ = 8857870560. Its totient is φ = 854876160.

The previous prime is 2778527221. The next prime is 2778527287. The reversal of 2778527232 is 2327258772.

2778527232 is a `hidden beast` number, since 27 + 78 + 527 + 2 + 32 = 666.

It is a congruent 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, 171982 + ... + 187442.

It is an arithmetic number, because the mean of its divisors is an integer number (55361691).

Almost surely, 2^2778527232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2778527232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4428935280).

2778527232 is an abundant number, since it is smaller than the sum of its proper divisors (6079343328).

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

2778527232 is a wasteful number, since it uses less digits than its factorization.

2778527232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15501 (or 15479 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 2778527232 is about 52711.7371369982. The cubic root of 2778527232 is about 1405.8475203026.

The spelling of 2778527232 in words is "two billion, seven hundred seventy-eight million, five hundred twenty-seven thousand, two hundred thirty-two".