63750056173 has 2 divisors, whose sum is σ = 63750056174. Its totient is φ = 63750056172.

The previous prime is 63750056129. The next prime is 63750056207. The reversal of 63750056173 is 37165005736.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62067251689 + 1682804484 = 249133^2 + 41022^2 .

It is a cyclic number.

It is not a de Polignac number, because 63750056173 - 2¹⁷ = 63749925101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63750056273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31875028086 + 31875028087.

It is an arithmetic number, because the mean of its divisors is an integer number (31875028087).

Almost surely, 2^63750056173 is an apocalyptic number.

It is an amenable number.

63750056173 is a deficient number, since it is larger than the sum of its proper divisors (1).

63750056173 is an equidigital number, since it uses as much as digits as its factorization.

63750056173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 63750056173 in words is "sixty-three billion, seven hundred fifty million, fifty-six thousand, one hundred seventy-three".