19632963994 has 16 divisors (see below), whose sum is σ = 34439220288. Its totient is φ = 8218449792.

The previous prime is 19632963937. The next prime is 19632963997. The reversal of 19632963994 is 49936923691.

19632963994 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (19632963997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16305847 + ... + 16307050.

It is an arithmetic number, because the mean of its divisors is an integer number (2152451268).

Almost surely, 2^19632963994 is an apocalyptic number.

19632963994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19632963994 is a deficient number, since it is larger than the sum of its proper divisors (14806256294).

19632963994 is a wasteful number, since it uses less digits than its factorization.

19632963994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32612949.

The product of its digits is 17006112, while the sum is 61.

The spelling of 19632963994 in words is "nineteen billion, six hundred thirty-two million, nine hundred sixty-three thousand, nine hundred ninety-four".