2891881982 has 8 divisors (see below), whose sum is σ = 4732170552. Its totient is φ = 1314491800.

The previous prime is 2891881969. The next prime is 2891882003.

2891881982 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65724569 + ... + 65724612.

It is an arithmetic number, because the mean of its divisors is an integer number (591521319).

Almost surely, 2^2891881982 is an apocalyptic number.

2891881982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2891881982 is a deficient number, since it is larger than the sum of its proper divisors (1840288570).

2891881982 is a wasteful number, since it uses less digits than its factorization.

2891881982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131449194.

The product of its digits is 1327104, while the sum is 56.

The square root of 2891881982 is about 53776.2213436385. The cubic root of 2891881982 is about 1424.7112548437.

The spelling of 2891881982 in words is "two billion, eight hundred ninety-one million, eight hundred eighty-one thousand, nine hundred eighty-two".