2991062885 has 4 divisors (see below), whose sum is σ = 3589275468. Its totient is φ = 2392850304.

The previous prime is 2991062881. The next prime is 2991062923. The reversal of 2991062885 is 5882601992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1696286596 + 1294776289 = 41186^2 + 35983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2991062885 - 2² = 2991062881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991062881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299106284 + ... + 299106293.

It is an arithmetic number, because the mean of its divisors is an integer number (897318867).

Almost surely, 2^2991062885 is an apocalyptic number.

It is an amenable number.

2991062885 is a deficient number, since it is larger than the sum of its proper divisors (598212583).

2991062885 is an equidigital number, since it uses as much as digits as its factorization.

2991062885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598212582.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 2991062885 is about 54690.6105743938. The cubic root of 2991062885 is about 1440.8159735316.

The spelling of 2991062885 in words is "two billion, nine hundred ninety-one million, sixty-two thousand, eight hundred eighty-five".