650871387823 has 2 divisors, whose sum is σ = 650871387824. Its totient is φ = 650871387822.

The previous prime is 650871387809. The next prime is 650871387841. The reversal of 650871387823 is 328783178056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 650871387823 - 2¹⁷ = 650871256751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650871387883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325435693911 + 325435693912.

It is an arithmetic number, because the mean of its divisors is an integer number (325435693912).

Almost surely, 2^650871387823 is an apocalyptic number.

650871387823 is a deficient number, since it is larger than the sum of its proper divisors (1).

650871387823 is an equidigital number, since it uses as much as digits as its factorization.

650871387823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 650871387823 in words is "six hundred fifty billion, eight hundred seventy-one million, three hundred eighty-seven thousand, eight hundred twenty-three".