2491084071 has 16 divisors (see below), whose sum is σ = 4217708800. Its totient is φ = 1423476504.

The previous prime is 2491084067. The next prime is 2491084097. The reversal of 2491084071 is 1704801942.

2491084071 is a `hidden beast` number, since 249 + 1 + 0 + 8 + 407 + 1 = 666.

It is not a de Polignac number, because 2491084071 - 2² = 2491084067 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 (2491084031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6589981 + ... + 6590358.

It is an arithmetic number, because the mean of its divisors is an integer number (263606800).

Almost surely, 2^2491084071 is an apocalyptic number.

2491084071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2491084071 is a deficient number, since it is larger than the sum of its proper divisors (1726624729).

2491084071 is a wasteful number, since it uses less digits than its factorization.

2491084071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180355 (or 13180349 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2491084071 is about 49910.7610741411. The cubic root of 2491084071 is about 1355.5934494665.

The spelling of 2491084071 in words is "two billion, four hundred ninety-one million, eighty-four thousand, seventy-one".