19082145851 has 4 divisors (see below), whose sum is σ = 19092368472. Its totient is φ = 19071923232.

The previous prime is 19082145763. The next prime is 19082145919. The reversal of 19082145851 is 15854128091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19082145851 - 2²⁶ = 19015036987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19082148851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108510 + ... + 5112243.

It is an arithmetic number, because the mean of its divisors is an integer number (4773092118).

Almost surely, 2^19082145851 is an apocalyptic number.

19082145851 is a deficient number, since it is larger than the sum of its proper divisors (10222621).

19082145851 is a wasteful number, since it uses less digits than its factorization.

19082145851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222620.

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 19082145851 in words is "nineteen billion, eighty-two million, one hundred forty-five thousand, eight hundred fifty-one".