2491701873 has 16 divisors (see below), whose sum is σ = 3356613120. Its totient is φ = 1644050304.

The previous prime is 2491701869. The next prime is 2491701881. The reversal of 2491701873 is 3781071942.

It is not a de Polignac number, because 2491701873 - 2² = 2491701869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2491701853) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 104973 + ... + 126501.

It is an arithmetic number, because the mean of its divisors is an integer number (209788320).

Almost surely, 2^2491701873 is an apocalyptic number.

It is an amenable number.

2491701873 is a deficient number, since it is larger than the sum of its proper divisors (864911247).

2491701873 is a wasteful number, since it uses less digits than its factorization.

2491701873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21928.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 2491701873 is about 49916.9497565707. The cubic root of 2491701873 is about 1355.7055049807.

The spelling of 2491701873 in words is "two billion, four hundred ninety-one million, seven hundred one thousand, eight hundred seventy-three".