6401452205 has 4 divisors (see below), whose sum is σ = 7681742652. Its totient is φ = 5121161760.

The previous prime is 6401452193. The next prime is 6401452247. The reversal of 6401452205 is 5022541046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5022541046 = 2 ⋅2511270523.

It can be written as a sum of positive squares in 2 ways, for example, as 2229067369 + 4172384836 = 47213^2 + 64594^2 .

It is not a de Polignac number, because 6401452205 - 2²² = 6397257901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 640145216 + ... + 640145225.

It is an arithmetic number, because the mean of its divisors is an integer number (1920435663).

Almost surely, 2^6401452205 is an apocalyptic number.

It is an amenable number.

6401452205 is a deficient number, since it is larger than the sum of its proper divisors (1280290447).

6401452205 is a wasteful number, since it uses less digits than its factorization.

6401452205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280290446.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 6401452205 is about 80009.0757664404. The cubic root of 6401452205 is about 1856.7759507108.

The spelling of 6401452205 in words is "six billion, four hundred one million, four hundred fifty-two thousand, two hundred five".