2791897512 has 32 divisors (see below), whose sum is σ = 7220426400. Its totient is φ = 898541504.

The previous prime is 2791897499. The next prime is 2791897513. The reversal of 2791897512 is 2157981972.

2791897512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2791897513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004978 + ... + 2006369.

It is an arithmetic number, because the mean of its divisors is an integer number (225638325).

Almost surely, 2^2791897512 is an apocalyptic number.

It is an amenable number.

2791897512 is an abundant number, since it is smaller than the sum of its proper divisors (4428528888).

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

2791897512 is a wasteful number, since it uses less digits than its factorization.

2791897512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011385 (or 4011381 counting only the distinct ones).

The product of its digits is 635040, while the sum is 51.

The square root of 2791897512 is about 52838.4094385893. The cubic root of 2791897512 is about 1408.0988935467.

The spelling of 2791897512 in words is "two billion, seven hundred ninety-one million, eight hundred ninety-seven thousand, five hundred twelve".