6632531491 has 2 divisors, whose sum is σ = 6632531492. Its totient is φ = 6632531490.

The previous prime is 6632531443. The next prime is 6632531557. The reversal of 6632531491 is 1941352366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6632531491 - 2¹⁵ = 6632498723 is a prime.

It is not a weakly prime, because it can be changed into another prime (6632531291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3316265745 + 3316265746.

It is an arithmetic number, because the mean of its divisors is an integer number (3316265746).

Almost surely, 2^6632531491 is an apocalyptic number.

6632531491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6632531491 is an equidigital number, since it uses as much as digits as its factorization.

6632531491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 6632531491 is about 81440.3554203934. The cubic root of 6632531491 is about 1878.8543165736.

The spelling of 6632531491 in words is "six billion, six hundred thirty-two million, five hundred thirty-one thousand, four hundred ninety-one".