6465936906 has 48 divisors (see below), whose sum is σ = 16458755040. Its totient is φ = 1808652960.

The previous prime is 6465936853. The next prime is 6465936923. The reversal of 6465936906 is 6096395646.

It is a happy number.

6465936906 is a `hidden beast` number, since 6 + 46 + 593 + 6 + 9 + 0 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1253436 + ... + 1258583.

It is an arithmetic number, because the mean of its divisors is an integer number (342890730).

Almost surely, 2^6465936906 is an apocalyptic number.

6465936906 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6465936906 is an abundant number, since it is smaller than the sum of its proper divisors (9992818134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6465936906 is a wasteful number, since it uses less digits than its factorization.

6465936906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512051 (or 2512048 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The square root of 6465936906 is about 80411.0496511518. The cubic root of 6465936906 is about 1862.9898445583.

The spelling of 6465936906 in words is "six billion, four hundred sixty-five million, nine hundred thirty-six thousand, nine hundred six".