2499791161 has 8 divisors (see below), whose sum is σ = 2857256640. Its totient is φ = 2142413808.

The previous prime is 2499791143. The next prime is 2499791191. The reversal of 2499791161 is 1611979942.

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

It is a cyclic number.

It is not a de Polignac number, because 2499791161 - 2¹⁷ = 2499660089 is a prime.

It is a super-2 number, since 2×2499791161² = 12497911697227455842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2499791131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58290 + ... + 91636.

It is an arithmetic number, because the mean of its divisors is an integer number (357157080).

Almost surely, 2^2499791161 is an apocalyptic number.

It is an amenable number.

2499791161 is a deficient number, since it is larger than the sum of its proper divisors (357465479).

2499791161 is a wasteful number, since it uses less digits than its factorization.

2499791161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44063.

The product of its digits is 244944, while the sum is 49.

The square root of 2499791161 is about 49997.9115663845. The cubic root of 2499791161 is about 1357.1710154944.

The spelling of 2499791161 in words is "two billion, four hundred ninety-nine million, seven hundred ninety-one thousand, one hundred sixty-one".