6465733388945 has 8 divisors (see below), whose sum is σ = 7779138241536. Its totient is φ = 5159081261296.

The previous prime is 6465733388911. The next prime is 6465733388957. The reversal of 6465733388945 is 5498833375646.

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 6465733388945 - 2⁸ = 6465733388689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688179127 + ... + 1688182956.

It is an arithmetic number, because the mean of its divisors is an integer number (972392280192).

Almost surely, 2^{6465733388945} is an apocalyptic number.

It is an amenable number.

6465733388945 is a deficient number, since it is larger than the sum of its proper divisors (1313404852591).

6465733388945 is a wasteful number, since it uses less digits than its factorization.

6465733388945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376362471.

The product of its digits is 1567641600, while the sum is 71.

The spelling of 6465733388945 in words is "six trillion, four hundred sixty-five billion, seven hundred thirty-three million, three hundred eighty-eight thousand, nine hundred forty-five".