63020255673 has 4 divisors (see below), whose sum is σ = 84027007568. Its totient is φ = 42013503780.

The previous prime is 63020255563. The next prime is 63020255689. The reversal of 63020255673 is 37655202036.

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 63020255673 - 2¹⁶ = 63020190137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63020255273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10503375943 + ... + 10503375948.

It is an arithmetic number, because the mean of its divisors is an integer number (21006751892).

Almost surely, 2^63020255673 is an apocalyptic number.

It is an amenable number.

63020255673 is a deficient number, since it is larger than the sum of its proper divisors (21006751895).

63020255673 is a wasteful number, since it uses less digits than its factorization.

63020255673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21006751894.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 63020255673 in words is "sixty-three billion, twenty million, two hundred fifty-five thousand, six hundred seventy-three".