2791889772 has 48 divisors (see below), whose sum is σ = 7528711680. Its totient is φ = 788717952.

The previous prime is 2791889759. The next prime is 2791889777. The reversal of 2791889772 is 2779881972.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2791889777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179248 + ... + 194199.

It is an arithmetic number, because the mean of its divisors is an integer number (156848160).

Almost surely, 2^2791889772 is an apocalyptic number.

It is an amenable number.

2791889772 is an abundant number, since it is smaller than the sum of its proper divisors (4736821908).

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

2791889772 is a wasteful number, since it uses less digits than its factorization.

2791889772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373550 (or 373548 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 60.

The square root of 2791889772 is about 52838.3361963641. The cubic root of 2791889772 is about 1408.0975923175.

The spelling of 2791889772 in words is "two billion, seven hundred ninety-one million, eight hundred eighty-nine thousand, seven hundred seventy-two".