2991512760 has 128 divisors (see below), whose sum is σ = 9464083200. Its totient is φ = 754375680.

The previous prime is 2991512753. The next prime is 2991512791. The reversal of 2991512760 is 672151992.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1953195 + ... + 1954725.

It is an arithmetic number, because the mean of its divisors is an integer number (73938150).

Almost surely, 2^2991512760 is an apocalyptic number.

2991512760 is a gapful number since it is divisible by the number (20) 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 2991512760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4732041600).

2991512760 is an abundant number, since it is smaller than the sum of its proper divisors (6472570440).

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

2991512760 is a wasteful number, since it uses less digits than its factorization.

2991512760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 2991512760 is about 54694.7233286722. The cubic root of 2991512760 is about 1440.8882058914. Note that the first 3 decimals are identical.

The spelling of 2991512760 in words is "two billion, nine hundred ninety-one million, five hundred twelve thousand, seven hundred sixty".