63631494268394 has 64 divisors (see below), whose sum is σ = 111859530236160. Its totient is φ = 26891435980800.

The previous prime is 63631494268369. The next prime is 63631494268423. The reversal of 63631494268394 is 49386249413636.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8767559 + ... + 14287514.

It is an arithmetic number, because the mean of its divisors is an integer number (1747805159940).

Almost surely, 2^{63631494268394} is an apocalyptic number.

63631494268394 is a deficient number, since it is larger than the sum of its proper divisors (48228035967766).

63631494268394 is a wasteful number, since it uses less digits than its factorization.

63631494268394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055295.

The product of its digits is 483729408, while the sum is 68.

The spelling of 63631494268394 in words is "sixty-three trillion, six hundred thirty-one billion, four hundred ninety-four million, two hundred sixty-eight thousand, three hundred ninety-four".