3551446774644 has 24 divisors (see below), whose sum is σ = 8346325757280. Its totient is φ = 1175298932064.

The previous prime is 3551446774637. The next prime is 3551446774649. The reversal of 3551446774644 is 4464776441553.

It is a happy number.

It is a super-2 number, since 2×3551446774644² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551446774649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064580699 + ... + 1064584034.

It is an arithmetic number, because the mean of its divisors is an integer number (347763573220).

Almost surely, 2^{3551446774644} is an apocalyptic number.

It is an amenable number.

3551446774644 is an abundant number, since it is smaller than the sum of its proper divisors (4794878982636).

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

3551446774644 is a wasteful number, since it uses less digits than its factorization.

3551446774644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129164879 (or 2129164877 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 60.

The spelling of 3551446774644 in words is "three trillion, five hundred fifty-one billion, four hundred forty-six million, seven hundred seventy-four thousand, six hundred forty-four".