63901950829 has 2 divisors, whose sum is σ = 63901950830. Its totient is φ = 63901950828.

The previous prime is 63901950823. The next prime is 63901950841. The reversal of 63901950829 is 92805910936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60995662729 + 2906288100 = 246973^2 + 53910^2 .

It is a cyclic number.

It is not a de Polignac number, because 63901950829 - 2³ = 63901950821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63901950821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31950975414 + 31950975415.

It is an arithmetic number, because the mean of its divisors is an integer number (31950975415).

Almost surely, 2^63901950829 is an apocalyptic number.

It is an amenable number.

63901950829 is a deficient number, since it is larger than the sum of its proper divisors (1).

63901950829 is an equidigital number, since it uses as much as digits as its factorization.

63901950829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 63901950829 in words is "sixty-three billion, nine hundred one million, nine hundred fifty thousand, eight hundred twenty-nine".