3671478045545 has 4 divisors (see below), whose sum is σ = 4405773654660. Its totient is φ = 2937182436432.

The previous prime is 3671478045539. The next prime is 3671478045569. The reversal of 3671478045545 is 5455408741763.

It is a happy number.

3671478045545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 551973216601 + 3119504828944 = 742949^2 + 1766212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3671478045545 is a prime.

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, 367147804550 + ... + 367147804559.

It is an arithmetic number, because the mean of its divisors is an integer number (1101443413665).

Almost surely, 2^{3671478045545} is an apocalyptic number.

It is an amenable number.

3671478045545 is a deficient number, since it is larger than the sum of its proper divisors (734295609115).

3671478045545 is an equidigital number, since it uses as much as digits as its factorization.

3671478045545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734295609114.

The product of its (nonzero) digits is 56448000, while the sum is 59.

The spelling of 3671478045545 in words is "three trillion, six hundred seventy-one billion, four hundred seventy-eight million, forty-five thousand, five hundred forty-five".