4461473541645 has 48 divisors (see below), whose sum is σ = 7974298934784. Its totient is φ = 2306043360000.

The previous prime is 4461473541631. The next prime is 4461473541697. The reversal of 4461473541645 is 5461453741644.

It is a happy number.

4461473541645 is a `hidden beast` number, since 4 + 4 + 6 + 1 + 473 + 5 + 4 + 164 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4461473541645 is a prime.

It is a super-3 number, since 3×4461473541645³ (a number of 39 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4461473541591 and 4461473541600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7728501 + ... + 8285690.

It is an arithmetic number, because the mean of its divisors is an integer number (166131227808).

Almost surely, 2^{4461473541645} is an apocalyptic number.

4461473541645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4461473541645 is a deficient number, since it is larger than the sum of its proper divisors (3512825393139).

4461473541645 is a wasteful number, since it uses less digits than its factorization.

4461473541645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16014394 (or 16014391 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 54.

The spelling of 4461473541645 in words is "four trillion, four hundred sixty-one billion, four hundred seventy-three million, five hundred forty-one thousand, six hundred forty-five".