63057127421 has 2 divisors, whose sum is σ = 63057127422. Its totient is φ = 63057127420.

The previous prime is 63057127409. The next prime is 63057127457. The reversal of 63057127421 is 12472175036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56839804921 + 6217322500 = 238411^2 + 78850^2 .

It is a cyclic number.

It is not a de Polignac number, because 63057127421 - 2¹⁰ = 63057126397 is a prime.

It is a super-2 number, since 2×63057127421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63057127321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31528563710 + 31528563711.

It is an arithmetic number, because the mean of its divisors is an integer number (31528563711).

Almost surely, 2^63057127421 is an apocalyptic number.

It is an amenable number.

63057127421 is a deficient number, since it is larger than the sum of its proper divisors (1).

63057127421 is an equidigital number, since it uses as much as digits as its factorization.

63057127421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 63057127421 in words is "sixty-three billion, fifty-seven million, one hundred twenty-seven thousand, four hundred twenty-one".