650038394791 has 2 divisors, whose sum is σ = 650038394792. Its totient is φ = 650038394790.

The previous prime is 650038394783. The next prime is 650038394801. The reversal of 650038394791 is 197493830056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 650038394791 - 2³ = 650038394783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650038394741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325019197395 + 325019197396.

It is an arithmetic number, because the mean of its divisors is an integer number (325019197396).

Almost surely, 2^650038394791 is an apocalyptic number.

650038394791 is a deficient number, since it is larger than the sum of its proper divisors (1).

650038394791 is an equidigital number, since it uses as much as digits as its factorization.

650038394791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 650038394791 in words is "six hundred fifty billion, thirty-eight million, three hundred ninety-four thousand, seven hundred ninety-one".