2772667788 has 96 divisors (see below), whose sum is σ = 7219134720. Its totient is φ = 821207040.

The previous prime is 2772667747. The next prime is 2772667801. The reversal of 2772667788 is 8877662772.

It is a happy number.

It is a super-2 number, since 2×2772667788² = 15375373325225625888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1061428 + ... + 1064036.

It is an arithmetic number, because the mean of its divisors is an integer number (75199320).

Almost surely, 2^2772667788 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 2772667788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3609567360).

2772667788 is an abundant number, since it is smaller than the sum of its proper divisors (4446466932).

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

2772667788 is a wasteful number, since it uses less digits than its factorization.

2772667788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2805 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 60.

The square root of 2772667788 is about 52656.1277345762. The cubic root of 2772667788 is about 1404.8585932668.

The spelling of 2772667788 in words is "two billion, seven hundred seventy-two million, six hundred sixty-seven thousand, seven hundred eighty-eight".