6465959797 has 4 divisors (see below), whose sum is σ = 7053774336. Its totient is φ = 5878145260.

The previous prime is 6465959791. The next prime is 6465959831. The reversal of 6465959797 is 7979595646.

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 not a de Polignac number, because 6465959797 - 2³ = 6465959789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465959791) 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, 293907253 + ... + 293907274.

It is an arithmetic number, because the mean of its divisors is an integer number (1763443584).

Almost surely, 2^6465959797 is an apocalyptic number.

It is an amenable number.

6465959797 is a deficient number, since it is larger than the sum of its proper divisors (587814539).

6465959797 is a wasteful number, since it uses less digits than its factorization.

6465959797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587814538.

The product of its digits is 128595600, while the sum is 67.

The square root of 6465959797 is about 80411.1919884291. The cubic root of 6465959797 is about 1862.9920430358.

The spelling of 6465959797 in words is "six billion, four hundred sixty-five million, nine hundred fifty-nine thousand, seven hundred ninety-seven".