650726739280968 has 128 divisors (see below), whose sum is σ = 1862894773923840. Its totient is φ = 185554414656000.

The previous prime is 650726739280967. The next prime is 650726739281119. The reversal of 650726739280968 is 869082937627056.

It is a junction number, because it is equal to n+sod(n) for n = 650726739280893 and 650726739280902.

It is not an unprimeable number, because it can be changed into a prime (650726739280967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1592017503 + ... + 1592426193.

It is an arithmetic number, because the mean of its divisors is an integer number (14553865421280).

Almost surely, 2^{650726739280968} is an apocalyptic number.

It is an amenable number.

650726739280968 is an abundant number, since it is smaller than the sum of its proper divisors (1212168034642872).

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

650726739280968 is a wasteful number, since it uses less digits than its factorization.

650726739280968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427419 (or 427415 counting only the distinct ones).

The product of its (nonzero) digits is 3292047360, while the sum is 78.

The spelling of 650726739280968 in words is "six hundred fifty trillion, seven hundred twenty-six billion, seven hundred thirty-nine million, two hundred eighty thousand, nine hundred sixty-eight".