6465436899 has 16 divisors (see below), whose sum is σ = 8663723904. Its totient is φ = 4288752000.

The previous prime is 6465436883. The next prime is 6465436931. The reversal of 6465436899 is 9986345646.

It is not a de Polignac number, because 6465436899 - 2⁴ = 6465436883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6465436829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045992 + ... + 1052154.

It is an arithmetic number, because the mean of its divisors is an integer number (541482744).

Almost surely, 2^6465436899 is an apocalyptic number.

6465436899 is a deficient number, since it is larger than the sum of its proper divisors (2198287005).

6465436899 is a wasteful number, since it uses less digits than its factorization.

6465436899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858.

The product of its digits is 33592320, while the sum is 60.

The square root of 6465436899 is about 80407.9405220654. The cubic root of 6465436899 is about 1862.9418220269.

The spelling of 6465436899 in words is "six billion, four hundred sixty-five million, four hundred thirty-six thousand, eight hundred ninety-nine".