4451975185556 has 24 divisors (see below), whose sum is σ = 8251520489856. Its totient is φ = 2094470040960.

The previous prime is 4451975185519. The next prime is 4451975185577. The reversal of 4451975185556 is 6555815791544.

It is a junction number, because it is equal to n+sod(n) for n = 4451975185492 and 4451975185501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8768546 + ... + 9262361.

It is an arithmetic number, because the mean of its divisors is an integer number (343813353744).

Almost surely, 2^{4451975185556} is an apocalyptic number.

It is an amenable number.

4451975185556 is a deficient number, since it is larger than the sum of its proper divisors (3799545304300).

4451975185556 is a wasteful number, since it uses less digits than its factorization.

4451975185556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034559 (or 18034557 counting only the distinct ones).

The product of its digits is 151200000, while the sum is 65.

The spelling of 4451975185556 in words is "four trillion, four hundred fifty-one billion, nine hundred seventy-five million, one hundred eighty-five thousand, five hundred fifty-six".