19629433902 has 32 divisors (see below), whose sum is σ = 42330290688. Its totient is φ = 6032467296.

The previous prime is 19629433897. The next prime is 19629433903. The reversal of 19629433902 is 20933492691.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19629433903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88698 + ... + 217085.

It is an arithmetic number, because the mean of its divisors is an integer number (1322821584).

Almost surely, 2^19629433902 is an apocalyptic number.

19629433902 is an abundant number, since it is smaller than the sum of its proper divisors (22700856786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19629433902 is a wasteful number, since it uses less digits than its factorization.

19629433902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306624.

The product of its (nonzero) digits is 629856, while the sum is 48.

The spelling of 19629433902 in words is "nineteen billion, six hundred twenty-nine million, four hundred thirty-three thousand, nine hundred two".