3651287873 has 8 divisors (see below), whose sum is σ = 3662534400. Its totient is φ = 3640056480.

The previous prime is 3651287821. The next prime is 3651287879. The reversal of 3651287873 is 3787821563.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3651287873 - 2⁸ = 3651287617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3651287879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636488 + ... + 642198.

It is an arithmetic number, because the mean of its divisors is an integer number (457816800).

Almost surely, 2^3651287873 is an apocalyptic number.

It is an amenable number.

3651287873 is a deficient number, since it is larger than the sum of its proper divisors (11246527).

3651287873 is a wasteful number, since it uses less digits than its factorization.

3651287873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567.

The product of its digits is 1693440, while the sum is 50.

The square root of 3651287873 is about 60425.8874407319. The cubic root of 3651287873 is about 1539.8627910869.

The spelling of 3651287873 in words is "three billion, six hundred fifty-one million, two hundred eighty-seven thousand, eight hundred seventy-three".