3807445881 has 4 divisors (see below), whose sum is σ = 5076594512. Its totient is φ = 2538297252.

The previous prime is 3807445871. The next prime is 3807445897. The reversal of 3807445881 is 1885447083.

3807445881 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3807445881 - 2⁵ = 3807445849 is a prime.

It is a super-2 number, since 2×3807445881² = 28993288273487732322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3807445881.

It is not an unprimeable number, because it can be changed into a prime (3807445841) 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, 634574311 + ... + 634574316.

It is an arithmetic number, because the mean of its divisors is an integer number (1269148628).

Almost surely, 2^3807445881 is an apocalyptic number.

It is an amenable number.

3807445881 is a deficient number, since it is larger than the sum of its proper divisors (1269148631).

3807445881 is a wasteful number, since it uses less digits than its factorization.

3807445881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269148630.

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 3807445881 is about 61704.5045438338. The cubic root of 3807445881 is about 1561.5093162879.

The spelling of 3807445881 in words is "three billion, eight hundred seven million, four hundred forty-five thousand, eight hundred eighty-one".