63321024857 has 2 divisors, whose sum is σ = 63321024858. Its totient is φ = 63321024856.

The previous prime is 63321024769. The next prime is 63321024863. The reversal of 63321024857 is 75842012336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63073308736 + 247716121 = 251144^2 + 15739^2 .

It is a cyclic number.

It is not a de Polignac number, because 63321024857 - 2¹² = 63321020761 is a prime.

It is not a weakly prime, because it can be changed into another prime (63321024257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31660512428 + 31660512429.

It is an arithmetic number, because the mean of its divisors is an integer number (31660512429).

Almost surely, 2^63321024857 is an apocalyptic number.

It is an amenable number.

63321024857 is a deficient number, since it is larger than the sum of its proper divisors (1).

63321024857 is an equidigital number, since it uses as much as digits as its factorization.

63321024857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 63321024857 in words is "sixty-three billion, three hundred twenty-one million, twenty-four thousand, eight hundred fifty-seven".