3806776660875 has 64 divisors (see below), whose sum is σ = 6923450806272. Its totient is φ = 1849212096000.

The previous prime is 3806776660861. The next prime is 3806776660889. The reversal of 3806776660875 is 5780666776083.

3806776660875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3806776660861) and next prime (3806776660889).

It is not a de Polignac number, because 3806776660875 - 2³¹ = 3804629177227 is a prime.

It is a super-2 number, since 2×3806776660875² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9433689 + ... + 9828938.

It is an arithmetic number, because the mean of its divisors is an integer number (108178918848).

Almost surely, 2^{3806776660875} is an apocalyptic number.

3806776660875 is a deficient number, since it is larger than the sum of its proper divisors (3116674145397).

3806776660875 is a wasteful number, since it uses less digits than its factorization.

3806776660875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19262693 (or 19262683 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 69.

The spelling of 3806776660875 in words is "three trillion, eight hundred six billion, seven hundred seventy-six million, six hundred sixty thousand, eight hundred seventy-five".