6497132331 has 4 divisors (see below), whose sum is σ = 8662843112. Its totient is φ = 4331421552.

The previous prime is 6497132311. The next prime is 6497132339. The reversal of 6497132331 is 1332317946.

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

It is not a de Polignac number, because 6497132331 - 2⁹ = 6497131819 is a prime.

It is a super-2 number, since 2×6497132331² = 84425457053050987122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6497132331.

It is not an unprimeable number, because it can be changed into a prime (6497132339) 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, 1082855386 + ... + 1082855391.

It is an arithmetic number, because the mean of its divisors is an integer number (2165710778).

Almost surely, 2^6497132331 is an apocalyptic number.

6497132331 is a deficient number, since it is larger than the sum of its proper divisors (2165710781).

6497132331 is a wasteful number, since it uses less digits than its factorization.

6497132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165710780.

The product of its digits is 81648, while the sum is 39.

The square root of 6497132331 is about 80604.7909928436. The cubic root of 6497132331 is about 1865.9810865883.

The spelling of 6497132331 in words is "six billion, four hundred ninety-seven million, one hundred thirty-two thousand, three hundred thirty-one".