7159894491 has 4 divisors (see below), whose sum is σ = 9546525992. Its totient is φ = 4773262992.

The previous prime is 7159894481. The next prime is 7159894501. The reversal of 7159894491 is 1944989517.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7159894481) and next prime (7159894501).

It is not a de Polignac number, because 7159894491 - 2¹⁴ = 7159878107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7159894421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193315746 + ... + 1193315751.

It is an arithmetic number, because the mean of its divisors is an integer number (2386631498).

Almost surely, 2^7159894491 is an apocalyptic number.

7159894491 is a deficient number, since it is larger than the sum of its proper divisors (2386631501).

7159894491 is a wasteful number, since it uses less digits than its factorization.

7159894491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386631500.

The product of its digits is 3265920, while the sum is 57.

The square root of 7159894491 is about 84616.1597509601. The cubic root of 7159894491 is about 1927.3867727264.

The spelling of 7159894491 in words is "seven billion, one hundred fifty-nine million, eight hundred ninety-four thousand, four hundred ninety-one".