481265356273218 has 128 divisors (see below), whose sum is σ = 1206329813498880. Its totient is φ = 140951233296000.

The previous prime is 481265356273199. The next prime is 481265356273223. The reversal of 481265356273218 is 812372653562184.

481265356273218 is a `hidden beast` number, since 4 + 8 + 1 + 2 + 6 + 5 + 356 + 273 + 2 + 1 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89736388 + ... + 94948143.

It is an arithmetic number, because the mean of its divisors is an integer number (9424451667960).

Almost surely, 2^{481265356273218} is an apocalyptic number.

481265356273218 is an abundant number, since it is smaller than the sum of its proper divisors (725064457225662).

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

481265356273218 is a wasteful number, since it uses less digits than its factorization.

481265356273218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184684701 (or 184684695 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 481265356273218 in words is "four hundred eighty-one trillion, two hundred sixty-five billion, three hundred fifty-six million, two hundred seventy-three thousand, two hundred eighteen".