63545144551 has 8 divisors (see below), whose sum is σ = 73371714080. Its totient is φ = 53905747968.

The previous prime is 63545144539. The next prime is 63545144561. The reversal of 63545144551 is 15544154536.

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

It is a cyclic number.

It is not a de Polignac number, because 63545144551 - 2²⁵ = 63511590119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63545144498 and 63545144507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63545144561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46792506 + ... + 46793863.

It is an arithmetic number, because the mean of its divisors is an integer number (9171464260).

Almost surely, 2^63545144551 is an apocalyptic number.

63545144551 is a deficient number, since it is larger than the sum of its proper divisors (9826569529).

63545144551 is an equidigital number, since it uses as much as digits as its factorization.

63545144551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93586473.

The product of its digits is 720000, while the sum is 43.

The spelling of 63545144551 in words is "sixty-three billion, five hundred forty-five million, one hundred forty-four thousand, five hundred fifty-one".