63955431761798 has 16 divisors (see below), whose sum is σ = 95945493462000. Its totient is φ = 31973600904192.

The previous prime is 63955431761789. The next prime is 63955431761827. The reversal of 63955431761798 is 89716713455936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557196158 + ... + 557310926.

It is an arithmetic number, because the mean of its divisors is an integer number (5996593341375).

Almost surely, 2^{63955431761798} is an apocalyptic number.

63955431761798 is a deficient number, since it is larger than the sum of its proper divisors (31990061700202).

63955431761798 is a wasteful number, since it uses less digits than its factorization.

63955431761798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148199.

The product of its digits is 1028764800, while the sum is 74.

The spelling of 63955431761798 in words is "sixty-three trillion, nine hundred fifty-five billion, four hundred thirty-one million, seven hundred sixty-one thousand, seven hundred ninety-eight".