650768781996 has 36 divisors (see below), whose sum is σ = 1741763506392. Its totient is φ = 204162754944.

The previous prime is 650768781989. The next prime is 650768782019. The reversal of 650768781996 is 699187867056.

650768781996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531673230 + ... + 531674453.

It is an arithmetic number, because the mean of its divisors is an integer number (48382319622).

Almost surely, 2^650768781996 is an apocalyptic number.

It is an amenable number.

650768781996 is an abundant number, since it is smaller than the sum of its proper divisors (1090994724396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650768781996 is a wasteful number, since it uses less digits than its factorization.

650768781996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063347710 (or 1063347705 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 72.

The spelling of 650768781996 in words is "six hundred fifty billion, seven hundred sixty-eight million, seven hundred eighty-one thousand, nine hundred ninety-six".