63057842281 has 4 divisors (see below), whose sum is σ = 72066105472. Its totient is φ = 54049579092.

The previous prime is 63057842279. The next prime is 63057842311. The reversal of 63057842281 is 18224875036.

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 a cyclic number.

It is not a de Polignac number, because 63057842281 - 2¹ = 63057842279 is a prime.

It is a super-2 number, since 2×63057842281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63057842231) 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, 4504131585 + ... + 4504131598.

It is an arithmetic number, because the mean of its divisors is an integer number (18016526368).

Almost surely, 2^63057842281 is an apocalyptic number.

It is an amenable number.

63057842281 is a deficient number, since it is larger than the sum of its proper divisors (9008263191).

63057842281 is an equidigital number, since it uses as much as digits as its factorization.

63057842281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9008263190.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 63057842281 in words is "sixty-three billion, fifty-seven million, eight hundred forty-two thousand, two hundred eighty-one".