650038394801 has 2 divisors, whose sum is σ = 650038394802. Its totient is φ = 650038394800.

The previous prime is 650038394791. The next prime is 650038394903. The reversal of 650038394801 is 108493830056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520959150625 + 129079244176 = 721775^2 + 359276^2 .

It is a cyclic number.

It is not a de Polignac number, because 650038394801 - 2¹⁴ = 650038378417 is a prime.

It is not a weakly prime, because it can be changed into another prime (650038390801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325019197400 + 325019197401.

It is an arithmetic number, because the mean of its divisors is an integer number (325019197401).

Almost surely, 2^650038394801 is an apocalyptic number.

It is an amenable number.

650038394801 is a deficient number, since it is larger than the sum of its proper divisors (1).

650038394801 is an equidigital number, since it uses as much as digits as its factorization.

650038394801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 650038394801 in words is "six hundred fifty billion, thirty-eight million, three hundred ninety-four thousand, eight hundred one".