63271000477 has 2 divisors, whose sum is σ = 63271000478. Its totient is φ = 63271000476.

The previous prime is 63271000439. The next prime is 63271000493. The reversal of 63271000477 is 77400017236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44272788921 + 18998211556 = 210411^2 + 137834^2 .

It is a cyclic number.

It is not a de Polignac number, because 63271000477 - 2⁷ = 63271000349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63271000417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31635500238 + 31635500239.

It is an arithmetic number, because the mean of its divisors is an integer number (31635500239).

Almost surely, 2^63271000477 is an apocalyptic number.

It is an amenable number.

63271000477 is a deficient number, since it is larger than the sum of its proper divisors (1).

63271000477 is an equidigital number, since it uses as much as digits as its factorization.

63271000477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 37.

The spelling of 63271000477 in words is "sixty-three billion, two hundred seventy-one million, four hundred seventy-seven", and thus it is an aban number.