451805481367172 has 48 divisors (see below), whose sum is σ = 797092520017920. Its totient is φ = 224072441288352.

The previous prime is 451805481367169. The next prime is 451805481367213. The reversal of 451805481367172 is 271763184508154.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450920029 + ... + 1451231387.

It is an arithmetic number, because the mean of its divisors is an integer number (16606094167040).

Almost surely, 2^{451805481367172} is an apocalyptic number.

It is an amenable number.

451805481367172 is a deficient number, since it is larger than the sum of its proper divisors (345287038650748).

451805481367172 is a wasteful number, since it uses less digits than its factorization.

451805481367172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317520 (or 317518 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 451805481367172 in words is "four hundred fifty-one trillion, eight hundred five billion, four hundred eighty-one million, three hundred sixty-seven thousand, one hundred seventy-two".