63813951147 has 4 divisors (see below), whose sum is σ = 85085268200. Its totient is φ = 42542634096.

The previous prime is 63813951119. The next prime is 63813951193. The reversal of 63813951147 is 74115931836.

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

It is not a de Polignac number, because 63813951147 - 2¹⁵ = 63813918379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63813951096 and 63813951105.

It is not an unprimeable number, because it can be changed into a prime (63813951547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10635658522 + ... + 10635658527.

It is an arithmetic number, because the mean of its divisors is an integer number (21271317050).

Almost surely, 2^63813951147 is an apocalyptic number.

63813951147 is a deficient number, since it is larger than the sum of its proper divisors (21271317053).

63813951147 is a wasteful number, since it uses less digits than its factorization.

63813951147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21271317052.

The product of its digits is 544320, while the sum is 48.

The spelling of 63813951147 in words is "sixty-three billion, eight hundred thirteen million, nine hundred fifty-one thousand, one hundred forty-seven".