3875813340881 has 4 divisors (see below), whose sum is σ = 3939351264564. Its totient is φ = 3812275417200.

The previous prime is 3875813340857. The next prime is 3875813340943. The reversal of 3875813340881 is 1880433185783.

3875813340881 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 1902631250881 + 1973182090000 = 1379359^2 + 1404700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3875813340881 is a prime.

It is a super-2 number, since 2×3875813340881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3875813340881.

It is not an unprimeable number, because it can be changed into a prime (3875816340881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31768961750 + ... + 31768961871.

It is an arithmetic number, because the mean of its divisors is an integer number (984837816141).

Almost surely, 2^{3875813340881} is an apocalyptic number.

It is an amenable number.

3875813340881 is a deficient number, since it is larger than the sum of its proper divisors (63537923683).

3875813340881 is an equidigital number, since it uses as much as digits as its factorization.

3875813340881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63537923682.

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 3875813340881 in words is "three trillion, eight hundred seventy-five billion, eight hundred thirteen million, three hundred forty thousand, eight hundred eighty-one".