63244391905 has 16 divisors (see below), whose sum is σ = 76769424000. Its totient is φ = 50011758720.

The previous prime is 63244391869. The next prime is 63244391921. The reversal of 63244391905 is 50919344236.

It is not a de Polignac number, because 63244391905 - 2²³ = 63236003297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1569196 + ... + 1608994.

It is an arithmetic number, because the mean of its divisors is an integer number (4798089000).

Almost surely, 2^63244391905 is an apocalyptic number.

It is an amenable number.

63244391905 is a deficient number, since it is larger than the sum of its proper divisors (13525032095).

63244391905 is a wasteful number, since it uses less digits than its factorization.

63244391905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43464.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 63244391905 in words is "sixty-three billion, two hundred forty-four million, three hundred ninety-one thousand, nine hundred five".