6491119153 has 4 divisors (see below), whose sum is σ = 6496367860. Its totient is φ = 6485870448.

The previous prime is 6491119121. The next prime is 6491119157. The reversal of 6491119153 is 3519111946.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5811317824 + 679801329 = 76232^2 + 26073^2 .

It is a cyclic number.

It is not a de Polignac number, because 6491119153 - 2⁵ = 6491119121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6491119157) 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, 2622498 + ... + 2624971.

It is an arithmetic number, because the mean of its divisors is an integer number (1624091965).

Almost surely, 2^6491119153 is an apocalyptic number.

It is an amenable number.

6491119153 is a deficient number, since it is larger than the sum of its proper divisors (5248707).

6491119153 is a wasteful number, since it uses less digits than its factorization.

6491119153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248706.

The product of its digits is 29160, while the sum is 40.

The square root of 6491119153 is about 80567.4819824971. The cubic root of 6491119153 is about 1865.4052458844.

The spelling of 6491119153 in words is "six billion, four hundred ninety-one million, one hundred nineteen thousand, one hundred fifty-three".