3811880145 has 16 divisors (see below), whose sum is σ = 6100281792. Its totient is φ = 2032578240.

The previous prime is 3811880143. The next prime is 3811880173. The reversal of 3811880145 is 5410881183.

3811880145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3811880145 - 2¹ = 3811880143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3811880141) 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, 55975 + ... + 103715.

It is an arithmetic number, because the mean of its divisors is an integer number (381267612).

Almost surely, 2^3811880145 is an apocalyptic number.

It is an amenable number.

3811880145 is a deficient number, since it is larger than the sum of its proper divisors (2288401647).

3811880145 is a wasteful number, since it uses less digits than its factorization.

3811880145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53072.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 3811880145 is about 61740.4255330331. The cubic root of 3811880145 is about 1562.1152744096.

The spelling of 3811880145 in words is "three billion, eight hundred eleven million, eight hundred eighty thousand, one hundred forty-five".