6536472691 has 4 divisors (see below), whose sum is σ = 7470254512. Its totient is φ = 5602690872.

The previous prime is 6536472643. The next prime is 6536472697. The reversal of 6536472691 is 1962746356.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6536472691 - 2⁹ = 6536472179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6536472697) 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, 466890900 + ... + 466890913.

It is an arithmetic number, because the mean of its divisors is an integer number (1867563628).

Almost surely, 2^6536472691 is an apocalyptic number.

6536472691 is a deficient number, since it is larger than the sum of its proper divisors (933781821).

6536472691 is an equidigital number, since it uses as much as digits as its factorization.

6536472691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933781820.

The product of its digits is 1632960, while the sum is 49.

The square root of 6536472691 is about 80848.4550934648. The cubic root of 6536472691 is about 1869.7397038250.

The spelling of 6536472691 in words is "six billion, five hundred thirty-six million, four hundred seventy-two thousand, six hundred ninety-one".