63420154223 has 4 divisors (see below), whose sum is σ = 63509605080. Its totient is φ = 63330703368.

The previous prime is 63420154181. The next prime is 63420154261. The reversal of 63420154223 is 32245102436.

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 63420154223 - 2¹² = 63420150127 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 63420154223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63420150223) 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, 44724365 + ... + 44725782.

It is an arithmetic number, because the mean of its divisors is an integer number (15877401270).

Almost surely, 2^63420154223 is an apocalyptic number.

63420154223 is a deficient number, since it is larger than the sum of its proper divisors (89450857).

63420154223 is an equidigital number, since it uses as much as digits as its factorization.

63420154223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89450856.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 63420154223 its reverse (32245102436), we get a palindrome (95665256659).

The spelling of 63420154223 in words is "sixty-three billion, four hundred twenty million, one hundred fifty-four thousand, two hundred twenty-three".