650640636446 has 8 divisors (see below), whose sum is σ = 989706883824. Its totient is φ = 320738341840.

The previous prime is 650640636427. The next prime is 650640636467. The reversal of 650640636446 is 644636046056.

It is a happy number.

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

It is a super-4 number, since 4×650640636446⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a junction number, because it is equal to n+sod(n) for n = 650640636394 and 650640636403.

It is a congruent number.

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, 2290988015 + ... + 2290988298.

It is an arithmetic number, because the mean of its divisors is an integer number (123713360478).

Almost surely, 2^650640636446 is an apocalyptic number.

650640636446 is a deficient number, since it is larger than the sum of its proper divisors (339066247378).

650640636446 is a wasteful number, since it uses less digits than its factorization.

650640636446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581976386.

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 650640636446 in words is "six hundred fifty billion, six hundred forty million, six hundred thirty-six thousand, four hundred forty-six".