63988226026 has 4 divisors (see below), whose sum is σ = 95982339042. Its totient is φ = 31994113012.

The previous prime is 63988226021. The next prime is 63988226077. The reversal of 63988226026 is 62062288936.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56746386225 + 7241839801 = 238215^2 + 85099^2 .

It is not an unprimeable number, because it can be changed into a prime (63988226021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15997056505 + ... + 15997056508.

Almost surely, 2^63988226026 is an apocalyptic number.

63988226026 is a deficient number, since it is larger than the sum of its proper divisors (31994113016).

63988226026 is a wasteful number, since it uses less digits than its factorization.

63988226026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31994113015.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 63988226026 in words is "sixty-three billion, nine hundred eighty-eight million, two hundred twenty-six thousand, twenty-six".