4100543456545 has 4 divisors (see below), whose sum is σ = 4920652147860. Its totient is φ = 3280434765232.

The previous prime is 4100543456473. The next prime is 4100543456579. The reversal of 4100543456545 is 5456543450014.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 772549586704 + 3327993869841 = 878948^2 + 1824279^2 .

It is a cyclic number.

It is not a de Polignac number, because 4100543456545 - 2⁷ = 4100543456417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4100543456495 and 4100543456504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410054345650 + ... + 410054345659.

It is an arithmetic number, because the mean of its divisors is an integer number (1230163036965).

Almost surely, 2^{4100543456545} is an apocalyptic number.

It is an amenable number.

4100543456545 is a deficient number, since it is larger than the sum of its proper divisors (820108691315).

4100543456545 is an equidigital number, since it uses as much as digits as its factorization.

4100543456545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820108691314.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 4100543456545 in words is "four trillion, one hundred billion, five hundred forty-three million, four hundred fifty-six thousand, five hundred forty-five".