6465497141 has 4 divisors (see below), whose sum is σ = 6467073984. Its totient is φ = 6463920300.

The previous prime is 6465497131. The next prime is 6465497153. The reversal of 6465497141 is 1417945646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6465497141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465497131) 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, 782255 + ... + 790476.

It is an arithmetic number, because the mean of its divisors is an integer number (1616768496).

Almost surely, 2^6465497141 is an apocalyptic number.

It is an amenable number.

6465497141 is a deficient number, since it is larger than the sum of its proper divisors (1576843).

6465497141 is a wasteful number, since it uses less digits than its factorization.

6465497141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576842.

The product of its digits is 725760, while the sum is 47.

The square root of 6465497141 is about 80408.3151234995. The cubic root of 6465497141 is about 1862.9476080237.

The spelling of 6465497141 in words is "six billion, four hundred sixty-five million, four hundred ninety-seven thousand, one hundred forty-one".