6523297491 has 8 divisors (see below), whose sum is σ = 8717912064. Its totient is φ = 4338773960.

The previous prime is 6523297457. The next prime is 6523297519. The reversal of 6523297491 is 1947923256.

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 6523297491 - 2⁶ = 6523297427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6523297491.

It is not an unprimeable number, because it can be changed into a prime (6523297441) 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, 2521251 + ... + 2523836.

It is an arithmetic number, because the mean of its divisors is an integer number (1089739008).

Almost surely, 2^6523297491 is an apocalyptic number.

6523297491 is a deficient number, since it is larger than the sum of its proper divisors (2194614573).

6523297491 is a wasteful number, since it uses less digits than its factorization.

6523297491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045521.

The product of its digits is 816480, while the sum is 48.

The square root of 6523297491 is about 80766.9331533642. The cubic root of 6523297491 is about 1868.4826158142.

The spelling of 6523297491 in words is "six billion, five hundred twenty-three million, two hundred ninety-seven thousand, four hundred ninety-one".