650626312643 has 4 divisors (see below), whose sum is σ = 650627934000. Its totient is φ = 650624691288.

The previous prime is 650626312631. The next prime is 650626312691. The reversal of 650626312643 is 346213626056.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 650626312643 - 2¹⁴ = 650626296259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650626312594 and 650626312603.

It is not an unprimeable number, because it can be changed into a prime (650626312043) 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, 283733 + ... + 1175481.

It is an arithmetic number, because the mean of its divisors is an integer number (162656983500).

Almost surely, 2^650626312643 is an apocalyptic number.

650626312643 is a deficient number, since it is larger than the sum of its proper divisors (1621357).

650626312643 is an equidigital number, since it uses as much as digits as its factorization.

650626312643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621356.

The product of its (nonzero) digits is 933120, while the sum is 44.

Adding to 650626312643 its reverse (346213626056), we get a palindrome (996839938699).

The spelling of 650626312643 in words is "six hundred fifty billion, six hundred twenty-six million, three hundred twelve thousand, six hundred forty-three".