6450932009809 has 4 divisors (see below), whose sum is σ = 7372493725504. Its totient is φ = 5529370294116.

The previous prime is 6450932009801. The next prime is 6450932009869. The reversal of 6450932009809 is 9089002390546.

It is a happy number.

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 6450932009809 - 2³ = 6450932009801 is a prime.

It is a super-2 number, since 2×6450932009809² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6450932009809.

It is not an unprimeable number, because it can be changed into a prime (6450932009801) 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, 460780857837 + ... + 460780857850.

It is an arithmetic number, because the mean of its divisors is an integer number (1843123431376).

Almost surely, 2^{6450932009809} is an apocalyptic number.

It is an amenable number.

6450932009809 is a deficient number, since it is larger than the sum of its proper divisors (921561715695).

6450932009809 is an equidigital number, since it uses as much as digits as its factorization.

6450932009809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921561715694.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 6450932009809 in words is "six trillion, four hundred fifty billion, nine hundred thirty-two million, nine thousand, eight hundred nine".