19490104236 has 24 divisors (see below), whose sum is σ = 46586103984. Its totient is φ = 6338245120.

The previous prime is 19490104157. The next prime is 19490104241. The reversal of 19490104236 is 63240109491.

It is a super-3 number, since 3×19490104236³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19490104194 and 19490104203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19806525 + ... + 19807508.

It is an arithmetic number, because the mean of its divisors is an integer number (1941087666).

Almost surely, 2^19490104236 is an apocalyptic number.

It is an amenable number.

19490104236 is an abundant number, since it is smaller than the sum of its proper divisors (27095999748).

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

19490104236 is a wasteful number, since it uses less digits than its factorization.

19490104236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39614081 (or 39614079 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 19490104236 in words is "nineteen billion, four hundred ninety million, one hundred four thousand, two hundred thirty-six".