2646223431444 has 144 divisors (see below), whose sum is σ = 6783457873920. Its totient is φ = 869727559680.

The previous prime is 2646223431419. The next prime is 2646223431469. The reversal of 2646223431444 is 4441343226462.

2646223431444 is a `hidden beast` number, since 2 + 6 + 4 + 62 + 234 + 314 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (2646223431419) and next prime (2646223431469).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2646223431444.

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 47 ways as a sum of consecutive naturals, for example, 671117337 + ... + 671121279.

Almost surely, 2^{2646223431444} is an apocalyptic number.

It is an amenable number.

2646223431444 is an abundant number, since it is smaller than the sum of its proper divisors (4137234442476).

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

2646223431444 is a wasteful number, since it uses less digits than its factorization.

2646223431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950 (or 4945 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 45.

The spelling of 2646223431444 in words is "two trillion, six hundred forty-six billion, two hundred twenty-three million, four hundred thirty-one thousand, four hundred forty-four".