2491682511 has 8 divisors (see below), whose sum is σ = 3332858800. Its totient is φ = 1655813952.

The previous prime is 2491682509. The next prime is 2491682521. The reversal of 2491682511 is 1152861942.

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

It is not a de Polignac number, because 2491682511 - 2¹ = 2491682509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2491682511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491682521) 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, 1325836 + ... + 1327713.

It is an arithmetic number, because the mean of its divisors is an integer number (416607350).

Almost surely, 2^2491682511 is an apocalyptic number.

2491682511 is a deficient number, since it is larger than the sum of its proper divisors (841176289).

2491682511 is a wasteful number, since it uses less digits than its factorization.

2491682511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653865.

The product of its digits is 34560, while the sum is 39.

The square root of 2491682511 is about 49916.7558140551. The cubic root of 2491682511 is about 1355.7019934266.

The spelling of 2491682511 in words is "two billion, four hundred ninety-one million, six hundred eighty-two thousand, five hundred eleven".