6449736379446 has 12 divisors (see below), whose sum is σ = 13974428822172. Its totient is φ = 2149912126476.

The previous prime is 6449736379399. The next prime is 6449736379451.

6449736379446 is a `hidden beast` number, since 6 + 4 + 49 + 73 + 6 + 3 + 79 + 446 = 666.

6449736379446 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179159343856 + ... + 179159343891.

It is an arithmetic number, because the mean of its divisors is an integer number (1164535735181).

Almost surely, 2^{6449736379446} is an apocalyptic number.

6449736379446 is an abundant number, since it is smaller than the sum of its proper divisors (7524692442726).

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

6449736379446 is a wasteful number, since it uses less digits than its factorization.

6449736379446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358318687755 (or 358318687752 counting only the distinct ones).

The product of its digits is 1975228416, while the sum is 72.

The spelling of 6449736379446 in words is "six trillion, four hundred forty-nine billion, seven hundred thirty-six million, three hundred seventy-nine thousand, four hundred forty-six".