6491795291 has 8 divisors (see below), whose sum is σ = 6516654144. Its totient is φ = 6466961160.

The previous prime is 6491795273. The next prime is 6491795309. The reversal of 6491795291 is 1925971946.

It is an interprime number because it is at equal distance from previous prime (6491795273) and next prime (6491795309).

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 6491795291 - 2¹⁴ = 6491778907 is a prime.

It is a super-2 number, since 2×6491795291² = 84286812200499549362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6491795251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649256 + ... + 659178.

It is an arithmetic number, because the mean of its divisors is an integer number (814581768).

Almost surely, 2^6491795291 is an apocalyptic number.

6491795291 is a deficient number, since it is larger than the sum of its proper divisors (24858853).

6491795291 is a wasteful number, since it uses less digits than its factorization.

6491795291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361.

The product of its digits is 1224720, while the sum is 53.

The square root of 6491795291 is about 80571.6779706120. The cubic root of 6491795291 is about 1865.4700127118.

The spelling of 6491795291 in words is "six billion, four hundred ninety-one million, seven hundred ninety-five thousand, two hundred ninety-one".