19120001902 has 16 divisors (see below), whose sum is σ = 28954029312. Its totient is φ = 9469089280.

The previous prime is 19120001839. The next prime is 19120001917. The reversal of 19120001902 is 20910002191.

It is a congruent number.

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, 18403 + ... + 196414.

It is an arithmetic number, because the mean of its divisors is an integer number (1809626832).

Almost surely, 2^19120001902 is an apocalyptic number.

19120001902 is a deficient number, since it is larger than the sum of its proper divisors (9834027410).

19120001902 is a wasteful number, since it uses less digits than its factorization.

19120001902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215243.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 19120001902 in words is "nineteen billion, one hundred twenty million, one thousand, nine hundred two".