2491652156 has 60 divisors (see below), whose sum is σ = 5251538880. Its totient is φ = 1033280640.

The previous prime is 2491652143. The next prime is 2491652167. The reversal of 2491652156 is 6512561942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 293540 + ... + 301908.

It is an arithmetic number, because the mean of its divisors is an integer number (87525648).

Almost surely, 2^2491652156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2491652156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625769440).

2491652156 is an abundant number, since it is smaller than the sum of its proper divisors (2759886724).

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

2491652156 is an equidigital number, since it uses as much as digits as its factorization.

2491652156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432 (or 8409 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 2491652156 is about 49916.4517569108. The cubic root of 2491652156 is about 1355.6964881103.

The spelling of 2491652156 in words is "two billion, four hundred ninety-one million, six hundred fifty-two thousand, one hundred fifty-six".