19118906190245 has 16 divisors (see below), whose sum is σ = 23028606789120. Its totient is φ = 15237930182784.

The previous prime is 19118906190187. The next prime is 19118906190257. The reversal of 19118906190245 is 54209160981191.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19118906190245 - 2¹⁰ = 19118906189221 is a prime.

It is a super-2 number, since 2×19118906190245² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495800 + ... + 7103409.

It is an arithmetic number, because the mean of its divisors is an integer number (1439287924320).

Almost surely, 2^{19118906190245} is an apocalyptic number.

It is an amenable number.

19118906190245 is a deficient number, since it is larger than the sum of its proper divisors (3909700598875).

19118906190245 is a wasteful number, since it uses less digits than its factorization.

19118906190245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10600564.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 19118906190245 in words is "nineteen trillion, one hundred eighteen billion, nine hundred six million, one hundred ninety thousand, two hundred forty-five".