6465279186993 has 32 divisors (see below), whose sum is σ = 9899657187840. Its totient is φ = 3711872597760.

The previous prime is 6465279186983. The next prime is 6465279187013. The reversal of 6465279186993 is 3996819725646.

It is not a de Polignac number, because 6465279186993 - 2³⁰ = 6464205445169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6465279186943) 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 31 ways as a sum of consecutive naturals, for example, 9202246 + ... + 9879872.

It is an arithmetic number, because the mean of its divisors is an integer number (309364287120).

Almost surely, 2^{6465279186993} is an apocalyptic number.

It is an amenable number.

6465279186993 is a deficient number, since it is larger than the sum of its proper divisors (3434378000847).

6465279186993 is a wasteful number, since it uses less digits than its factorization.

6465279186993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692877.

The product of its digits is 1058158080, while the sum is 75.

The spelling of 6465279186993 in words is "six trillion, four hundred sixty-five billion, two hundred seventy-nine million, one hundred eighty-six thousand, nine hundred ninety-three".