3806781652047 has 16 divisors (see below), whose sum is σ = 5537435265792. Its totient is φ = 2307016096320.

The previous prime is 3806781652021. The next prime is 3806781652073. The reversal of 3806781652047 is 7402561876083.

It is an interprime number because it is at equal distance from previous prime (3806781652021) and next prime (3806781652073).

It is not a de Polignac number, because 3806781652047 - 2¹¹ = 3806781649999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806781652847) 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, 2483803 + ... + 3712524.

It is an arithmetic number, because the mean of its divisors is an integer number (346089704112).

Almost surely, 2^{3806781652047} is an apocalyptic number.

3806781652047 is a deficient number, since it is larger than the sum of its proper divisors (1730653613745).

3806781652047 is a wasteful number, since it uses less digits than its factorization.

3806781652047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214958.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 3806781652047 in words is "three trillion, eight hundred six billion, seven hundred eighty-one million, six hundred fifty-two thousand, forty-seven".