3807722881 has 4 divisors (see below), whose sum is σ = 3939023700. Its totient is φ = 3676422064.

The previous prime is 3807722879. The next prime is 3807722921. The reversal of 3807722881 is 1882277083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1882277083 = 193 ⋅9752731.

It can be written as a sum of positive squares in 2 ways, for example, as 2706080400 + 1101642481 = 52020^2 + 33191^2 .

It is a cyclic number.

It is not a de Polignac number, because 3807722881 - 2¹ = 3807722879 is a prime.

It is a super-2 number, since 2×3807722881² = 28997507076981880322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3807722081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65650366 + ... + 65650423.

It is an arithmetic number, because the mean of its divisors is an integer number (984755925).

Almost surely, 2^3807722881 is an apocalyptic number.

It is an amenable number.

3807722881 is a deficient number, since it is larger than the sum of its proper divisors (131300819).

3807722881 is a wasteful number, since it uses less digits than its factorization.

3807722881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131300818.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 3807722881 is about 61706.7490717182. The cubic root of 3807722881 is about 1561.5471831069.

The spelling of 3807722881 in words is "three billion, eight hundred seven million, seven hundred twenty-two thousand, eight hundred eighty-one".