3644925881468 has 24 divisors (see below), whose sum is σ = 6390767652864. Its totient is φ = 1818992775600.

The previous prime is 3644925881419. The next prime is 3644925881473. The reversal of 3644925881468 is 8641885294463.

It is a junction number, because it is equal to n+sod(n) for n = 3644925881398 and 3644925881407.

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 7 ways as a sum of consecutive naturals, for example, 32525573 + ... + 32637443.

It is an arithmetic number, because the mean of its divisors is an integer number (266281985536).

Almost surely, 2^{3644925881468} is an apocalyptic number.

It is an amenable number.

3644925881468 is a deficient number, since it is larger than the sum of its proper divisors (2745841771396).

3644925881468 is a wasteful number, since it uses less digits than its factorization.

3644925881468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127313 (or 127311 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 68.

The spelling of 3644925881468 in words is "three trillion, six hundred forty-four billion, nine hundred twenty-five million, eight hundred eighty-one thousand, four hundred sixty-eight".