2772190872 has 256 divisors, whose sum is σ = 8828006400. Its totient is φ = 798336000.

The previous prime is 2772190853. The next prime is 2772190879. The reversal of 2772190872 is 2780912772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772190879) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4492708 + ... + 4493324.

It is an arithmetic number, because the mean of its divisors is an integer number (34484400).

Almost surely, 2^2772190872 is an apocalyptic number.

2772190872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2772190872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4414003200).

2772190872 is an abundant number, since it is smaller than the sum of its proper divisors (6055815528).

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

2772190872 is a wasteful number, since it uses less digits than its factorization.

2772190872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 725 counting only the distinct ones).

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

The square root of 2772190872 is about 52651.5989500794. The cubic root of 2772190872 is about 1404.7780405271.

The spelling of 2772190872 in words is "two billion, seven hundred seventy-two million, one hundred ninety thousand, eight hundred seventy-two".