63470318421 has 4 divisors (see below), whose sum is σ = 84627091232. Its totient is φ = 42313545612.

The previous prime is 63470318419. The next prime is 63470318447. The reversal of 63470318421 is 12481307436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63470318421 - 2¹ = 63470318419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63470318421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63470318621) 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 3 ways as a sum of consecutive naturals, for example, 10578386401 + ... + 10578386406.

It is an arithmetic number, because the mean of its divisors is an integer number (21156772808).

Almost surely, 2^63470318421 is an apocalyptic number.

It is an amenable number.

63470318421 is a deficient number, since it is larger than the sum of its proper divisors (21156772811).

63470318421 is a wasteful number, since it uses less digits than its factorization.

63470318421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21156772810.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 63470318421 in words is "sixty-three billion, four hundred seventy million, three hundred eighteen thousand, four hundred twenty-one".