63057436623673 has 4 divisors (see below), whose sum is σ = 63057632741620. Its totient is φ = 63057240505728.

The previous prime is 63057436623617. The next prime is 63057436623683. The reversal of 63057436623673 is 37632663475036.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15478936811584 + 47578499812089 = 3934328^2 + 6897717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63057436623673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63057436623683) 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, 97575888 + ... + 98220001.

It is an arithmetic number, because the mean of its divisors is an integer number (15764408185405).

Almost surely, 2^{63057436623673} is an apocalyptic number.

It is an amenable number.

63057436623673 is a deficient number, since it is larger than the sum of its proper divisors (196117947).

63057436623673 is a wasteful number, since it uses less digits than its factorization.

63057436623673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196117946.

The product of its (nonzero) digits is 205752960, while the sum is 61.

The spelling of 63057436623673 in words is "sixty-three trillion, fifty-seven billion, four hundred thirty-six million, six hundred twenty-three thousand, six hundred seventy-three".