650672813018 has 8 divisors (see below), whose sum is σ = 1033421526612. Its totient is φ = 306198970816.

The previous prime is 650672812957. The next prime is 650672813059. The reversal of 650672813018 is 810318276056.

It can be written as a sum of positive squares in 2 ways, for example, as 641339900569 + 9332912449 = 800837^2 + 96607^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9568717805 + ... + 9568717872.

Almost surely, 2^650672813018 is an apocalyptic number.

650672813018 is a deficient number, since it is larger than the sum of its proper divisors (382748713594).

650672813018 is a wasteful number, since it uses less digits than its factorization.

650672813018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19137435696.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 650672813018 in words is "six hundred fifty billion, six hundred seventy-two million, eight hundred thirteen thousand, eighteen".