63363479551 has 4 divisors (see below), whose sum is σ = 67090743072. Its totient is φ = 59636216032.

The previous prime is 63363479549. The next prime is 63363479567. The reversal of 63363479551 is 15597436336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63363479551 - 2¹ = 63363479549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63363479591) 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 3 ways as a sum of consecutive naturals, for example, 1863631735 + ... + 1863631768.

It is an arithmetic number, because the mean of its divisors is an integer number (16772685768).

Almost surely, 2^63363479551 is an apocalyptic number.

63363479551 is a deficient number, since it is larger than the sum of its proper divisors (3727263521).

63363479551 is a wasteful number, since it uses less digits than its factorization.

63363479551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727263520.

The product of its digits is 6123600, while the sum is 52.

The spelling of 63363479551 in words is "sixty-three billion, three hundred sixty-three million, four hundred seventy-nine thousand, five hundred fifty-one".