63890650775 has 96 divisors (see below), whose sum is σ = 96988078080. Its totient is φ = 40755456000.

The previous prime is 63890650771. The next prime is 63890650777. The reversal of 63890650775 is 57705609836.

It is not a de Polignac number, because 63890650775 - 2² = 63890650771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63890650775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63890650771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 130123280 + ... + 130123770.

It is an arithmetic number, because the mean of its divisors is an integer number (1010292480).

Almost surely, 2^63890650775 is an apocalyptic number.

63890650775 is a deficient number, since it is larger than the sum of its proper divisors (33097427305).

63890650775 is a wasteful number, since it uses less digits than its factorization.

63890650775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 63890650775 in words is "sixty-three billion, eight hundred ninety million, six hundred fifty thousand, seven hundred seventy-five".