7191162491 has 8 divisors (see below), whose sum is σ = 7557276144. Its totient is φ = 6834088800.

The previous prime is 7191162421. The next prime is 7191162493. The reversal of 7191162491 is 1942611917.

7191162491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7191162491 - 2¹⁴ = 7191146107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7191162493) 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, 2258360 + ... + 2261541.

It is an arithmetic number, because the mean of its divisors is an integer number (944659518).

Almost surely, 2^7191162491 is an apocalyptic number.

7191162491 is a deficient number, since it is larger than the sum of its proper divisors (366113653).

7191162491 is a wasteful number, since it uses less digits than its factorization.

7191162491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519981.

The product of its digits is 27216, while the sum is 41.

The square root of 7191162491 is about 84800.7222315942. The cubic root of 7191162491 is about 1930.1883974948.

The spelling of 7191162491 in words is "seven billion, one hundred ninety-one million, one hundred sixty-two thousand, four hundred ninety-one".