18470075819 has 4 divisors (see below), whose sum is σ = 19890850896. Its totient is φ = 17049300744.

The previous prime is 18470075783. The next prime is 18470075857. The reversal of 18470075819 is 91857007481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91857007481 = 26417 ⋅3477193.

It is a cyclic number.

It is not a de Polignac number, because 18470075819 - 2¹² = 18470071723 is a prime.

It is a super-2 number, since 2×18470075819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18470075419) 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, 710387519 + ... + 710387544.

It is an arithmetic number, because the mean of its divisors is an integer number (4972712724).

Almost surely, 2^18470075819 is an apocalyptic number.

18470075819 is a deficient number, since it is larger than the sum of its proper divisors (1420775077).

18470075819 is a wasteful number, since it uses less digits than its factorization.

18470075819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420775076.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 18470075819 in words is "eighteen billion, four hundred seventy million, seventy-five thousand, eight hundred nineteen".