19629430094 has 4 divisors (see below), whose sum is σ = 29444145144. Its totient is φ = 9814715046.

The previous prime is 19629430091. The next prime is 19629430111. The reversal of 19629430094 is 49003492691.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19629430091) by changing a digit.

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 as a sum of consecutive naturals, namely, 4907357522 + ... + 4907357525.

It is an arithmetic number, because the mean of its divisors is an integer number (7361036286).

Almost surely, 2^19629430094 is an apocalyptic number.

19629430094 is a deficient number, since it is larger than the sum of its proper divisors (9814715050).

19629430094 is an equidigital number, since it uses as much as digits as its factorization.

19629430094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9814715049.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 19629430094 in words is "nineteen billion, six hundred twenty-nine million, four hundred thirty thousand, ninety-four".