3672641668 has 6 divisors (see below), whose sum is σ = 6427122926. Its totient is φ = 1836320832.

The previous prime is 3672641639. The next prime is 3672641683. The reversal of 3672641668 is 8661462763.

It can be written as a sum of positive squares in only one way, i.e., 3560747584 + 111894084 = 59672^2 + 10578^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459080205 + ... + 459080212.

Almost surely, 2^3672641668 is an apocalyptic number.

It is an amenable number.

3672641668 is a deficient number, since it is larger than the sum of its proper divisors (2754481258).

3672641668 is a wasteful number, since it uses less digits than its factorization.

3672641668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918160421 (or 918160419 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 3672641668 is about 60602.3239488388. The cubic root of 3672641668 is about 1542.8588134919.

The spelling of 3672641668 in words is "three billion, six hundred seventy-two million, six hundred forty-one thousand, six hundred sixty-eight".