2691157213 has 8 divisors (see below), whose sum is σ = 2788006400. Its totient is φ = 2594935440.

The previous prime is 2691157187. The next prime is 2691157229. The reversal of 2691157213 is 3127511962.

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 2691157213 - 2⁵ = 2691157181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691157013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148113 + ... + 165286.

It is an arithmetic number, because the mean of its divisors is an integer number (348500800).

Almost surely, 2^2691157213 is an apocalyptic number.

It is an amenable number.

2691157213 is a deficient number, since it is larger than the sum of its proper divisors (96849187).

2691157213 is a wasteful number, since it uses less digits than its factorization.

2691157213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313707.

The product of its digits is 22680, while the sum is 37.

The square root of 2691157213 is about 51876.3646856639. The cubic root of 2691157213 is about 1390.9548178038.

The spelling of 2691157213 in words is "two billion, six hundred ninety-one million, one hundred fifty-seven thousand, two hundred thirteen".