19120001913 has 32 divisors (see below), whose sum is σ = 29569536000. Its totient is φ = 12187497168.

The previous prime is 19120001839. The next prime is 19120001917. The reversal of 19120001913 is 31910002191.

It is not a de Polignac number, because 19120001913 - 2⁹ = 19120001401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19120001917) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2073888 + ... + 2083086.

It is an arithmetic number, because the mean of its divisors is an integer number (924048000).

Almost surely, 2^19120001913 is an apocalyptic number.

It is an amenable number.

19120001913 is a deficient number, since it is larger than the sum of its proper divisors (10449534087).

19120001913 is a wasteful number, since it uses less digits than its factorization.

19120001913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12578 (or 12572 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 19120001913 in words is "nineteen billion, one hundred twenty million, one thousand, nine hundred thirteen".