63057886421 has 4 divisors (see below), whose sum is σ = 63319537644. Its totient is φ = 62796235200.

The previous prime is 63057886403. The next prime is 63057886469. The reversal of 63057886421 is 12468875036.

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 28658765521 + 34399120900 = 169289^2 + 185470^2 .

It is a cyclic number.

It is not a de Polignac number, because 63057886421 - 2¹⁸ = 63057624277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63057886421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63057886481) 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, 130825250 + ... + 130825731.

It is an arithmetic number, because the mean of its divisors is an integer number (15829884411).

Almost surely, 2^63057886421 is an apocalyptic number.

It is an amenable number.

63057886421 is a deficient number, since it is larger than the sum of its proper divisors (261651223).

63057886421 is a wasteful number, since it uses less digits than its factorization.

63057886421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261651222.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 63057886421 in words is "sixty-three billion, fifty-seven million, eight hundred eighty-six thousand, four hundred twenty-one".