3667121873 has 4 divisors (see below), whose sum is σ = 3667317360. Its totient is φ = 3666926388.

The previous prime is 3667121851. The next prime is 3667121879. The reversal of 3667121873 is 3781217663.

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 a cyclic number.

It is not a de Polignac number, because 3667121873 - 2⁸ = 3667121617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3667121879) 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, 66215 + ... + 108252.

It is an arithmetic number, because the mean of its divisors is an integer number (916829340).

Almost surely, 2^3667121873 is an apocalyptic number.

It is an amenable number.

3667121873 is a deficient number, since it is larger than the sum of its proper divisors (195487).

3667121873 is a wasteful number, since it uses less digits than its factorization.

3667121873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195486.

The product of its digits is 254016, while the sum is 44.

The square root of 3667121873 is about 60556.7657078877. The cubic root of 3667121873 is about 1542.0854796352.

The spelling of 3667121873 in words is "three billion, six hundred sixty-seven million, one hundred twenty-one thousand, eight hundred seventy-three".