63973264545 has 48 divisors (see below), whose sum is σ = 116076340224. Its totient is φ = 32553360000.

The previous prime is 63973264517. The next prime is 63973264547. The reversal of 63973264545 is 54546237936.

63973264545 is a `hidden beast` number, since 6 + 3 + 9 + 7 + 32 + 64 + 545 = 666.

It is not a de Polignac number, because 63973264545 - 2¹¹ = 63973262497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63973264491 and 63973264500.

It is not an unprimeable number, because it can be changed into a prime (63973264547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223906 + ... + 421995.

It is an arithmetic number, because the mean of its divisors is an integer number (2418257088).

Almost surely, 2^63973264545 is an apocalyptic number.

It is an amenable number.

63973264545 is a deficient number, since it is larger than the sum of its proper divisors (52103075679).

63973264545 is a wasteful number, since it uses less digits than its factorization.

63973264545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646014 (or 646011 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 54.

The spelling of 63973264545 in words is "sixty-three billion, nine hundred seventy-three million, two hundred sixty-four thousand, five hundred forty-five".