450121515332172 has 24 divisors (see below), whose sum is σ = 1050844884590592. Its totient is φ = 149960312422800.

The previous prime is 450121515332141. The next prime is 450121515332183. The reversal of 450121515332172 is 271233515121054.

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, 10024062604 + ... + 10024107507.

It is an arithmetic number, because the mean of its divisors is an integer number (43785203524608).

Almost surely, 2^{450121515332172} is an apocalyptic number.

It is an amenable number.

450121515332172 is an abundant number, since it is smaller than the sum of its proper divisors (600723369258420).

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

450121515332172 is a wasteful number, since it uses less digits than its factorization.

450121515332172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048171989 (or 20048171987 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 450121515332172 in words is "four hundred fifty trillion, one hundred twenty-one billion, five hundred fifteen million, three hundred thirty-two thousand, one hundred seventy-two".