481681531247645 has 32 divisors (see below), whose sum is σ = 601091147704320. Its totient is φ = 370315076901120.

The previous prime is 481681531247573. The next prime is 481681531247647. The reversal of 481681531247645 is 546742135186184.

It is not a de Polignac number, because 481681531247645 - 2¹⁴ = 481681531231261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481681531247647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68312882 + ... + 75033411.

It is an arithmetic number, because the mean of its divisors is an integer number (18784098365760).

Almost surely, 2^{481681531247645} is an apocalyptic number.

It is an amenable number.

481681531247645 is a deficient number, since it is larger than the sum of its proper divisors (119409616456675).

481681531247645 is a wasteful number, since it uses less digits than its factorization.

481681531247645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143346605.

The product of its digits is 154828800, while the sum is 65.

The spelling of 481681531247645 in words is "four hundred eighty-one trillion, six hundred eighty-one billion, five hundred thirty-one million, two hundred forty-seven thousand, six hundred forty-five".