63109642 has 8 divisors (see below), whose sum is σ = 97223076. Its totient is φ = 30701952.

The previous prime is 63109639. The next prime is 63109663. The reversal of 63109642 is 24690136.

63109642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60357361 + 2752281 = 7769^2 + 1659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426343 + ... + 426490.

Almost surely, 2^63109642 is an apocalyptic number.

63109642 is a deficient number, since it is larger than the sum of its proper divisors (34113434).

63109642 is a wasteful number, since it uses less digits than its factorization.

63109642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852872.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 63109642 is about 7944.1577275379. The cubic root of 63109642 is about 398.1364186449.

Adding to 63109642 its reverse (24690136), we get a palindrome (87799778).

The spelling of 63109642 in words is "sixty-three million, one hundred nine thousand, six hundred forty-two".