650406642377 has 2 divisors, whose sum is σ = 650406642378. Its totient is φ = 650406642376.

The previous prime is 650406642343. The next prime is 650406642383. The reversal of 650406642377 is 773246604056.

650406642377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647471278336 + 2935364041 = 804656^2 + 54179^2 .

It is a cyclic number.

It is not a de Polignac number, because 650406642377 - 2¹² = 650406638281 is a prime.

It is not a weakly prime, because it can be changed into another prime (650406642397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325203321188 + 325203321189.

It is an arithmetic number, because the mean of its divisors is an integer number (325203321189).

Almost surely, 2^650406642377 is an apocalyptic number.

It is an amenable number.

650406642377 is a deficient number, since it is larger than the sum of its proper divisors (1).

650406642377 is an equidigital number, since it uses as much as digits as its factorization.

650406642377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 650406642377 in words is "six hundred fifty billion, four hundred six million, six hundred forty-two thousand, three hundred seventy-seven".