474744325406639 has 2 divisors, whose sum is σ = 474744325406640. Its totient is φ = 474744325406638.

The previous prime is 474744325406629. The next prime is 474744325406773. The reversal of 474744325406639 is 936604523447474.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474744325406639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474744325406629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237372162703319 + 237372162703320.

It is an arithmetic number, because the mean of its divisors is an integer number (237372162703320).

Almost surely, 2^{474744325406639} is an apocalyptic number.

474744325406639 is a deficient number, since it is larger than the sum of its proper divisors (1).

474744325406639 is an equidigital number, since it uses as much as digits as its factorization.

474744325406639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1463132160, while the sum is 68.

The spelling of 474744325406639 in words is "four hundred seventy-four trillion, seven hundred forty-four billion, three hundred twenty-five million, four hundred six thousand, six hundred thirty-nine".