63190081949 has 2 divisors, whose sum is σ = 63190081950. Its totient is φ = 63190081948.

The previous prime is 63190081937. The next prime is 63190081957. The reversal of 63190081949 is 94918009136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56814059449 + 6376022500 = 238357^2 + 79850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63190081949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63190081897 and 63190081906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63190083949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31595040974 + 31595040975.

It is an arithmetic number, because the mean of its divisors is an integer number (31595040975).

Almost surely, 2^63190081949 is an apocalyptic number.

It is an amenable number.

63190081949 is a deficient number, since it is larger than the sum of its proper divisors (1).

63190081949 is an equidigital number, since it uses as much as digits as its factorization.

63190081949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 63190081949 in words is "sixty-three billion, one hundred ninety million, eighty-one thousand, nine hundred forty-nine".