63546878326449 has 8 divisors (see below), whose sum is σ = 96833338402240. Its totient is φ = 36312501900816.

The previous prime is 63546878326447. The next prime is 63546878326453. The reversal of 63546878326449 is 94462387864536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63546878326449 - 2¹ = 63546878326447 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63546878326447) 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, 1513020912514 + ... + 1513020912555.

It is an arithmetic number, because the mean of its divisors is an integer number (12104167300280).

Almost surely, 2^{63546878326449} is an apocalyptic number.

It is an amenable number.

63546878326449 is a deficient number, since it is larger than the sum of its proper divisors (33286460075791).

63546878326449 is a wasteful number, since it uses less digits than its factorization.

63546878326449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026041825079.

The product of its digits is 5016453120, while the sum is 75.

The spelling of 63546878326449 in words is "sixty-three trillion, five hundred forty-six billion, eight hundred seventy-eight million, three hundred twenty-six thousand, four hundred forty-nine".