3806813475645 has 16 divisors (see below), whose sum is σ = 6090989893440. Its totient is φ = 2030271076224.

The previous prime is 3806813475643. The next prime is 3806813475649. The reversal of 3806813475645 is 5465743186083.

It is not a de Polignac number, because 3806813475645 - 2¹ = 3806813475643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806813475643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750655 + ... + 2859564.

It is an arithmetic number, because the mean of its divisors is an integer number (380686868340).

Almost surely, 2^{3806813475645} is an apocalyptic number.

It is an amenable number.

3806813475645 is a deficient number, since it is larger than the sum of its proper divisors (2284176417795).

3806813475645 is a wasteful number, since it uses less digits than its factorization.

3806813475645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680524.

The product of its (nonzero) digits is 58060800, while the sum is 60.

The spelling of 3806813475645 in words is "three trillion, eight hundred six billion, eight hundred thirteen million, four hundred seventy-five thousand, six hundred forty-five".