63654424641 has 8 divisors (see below), whose sum is σ = 94302851360. Its totient is φ = 42436283076.

The previous prime is 63654424637. The next prime is 63654424807. The reversal of 63654424641 is 14642445636.

63654424641 is a `hidden beast` number, since 6 + 365 + 4 + 4 + 246 + 41 = 666.

It is not a de Polignac number, because 63654424641 - 2² = 63654424637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63654424241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178785615 + ... + 1178785668.

It is an arithmetic number, because the mean of its divisors is an integer number (11787856420).

Almost surely, 2^63654424641 is an apocalyptic number.

It is an amenable number.

63654424641 is a deficient number, since it is larger than the sum of its proper divisors (30648426719).

63654424641 is a wasteful number, since it uses less digits than its factorization.

63654424641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357571292 (or 2357571286 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The spelling of 63654424641 in words is "sixty-three billion, six hundred fifty-four million, four hundred twenty-four thousand, six hundred forty-one".