18428363793019 has 4 divisors (see below), whose sum is σ = 18520968636400. Its totient is φ = 18335758949640.

The previous prime is 18428363793011. The next prime is 18428363793041. The reversal of 18428363793019 is 91039736382481.

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 18428363793019 - 2³ = 18428363793011 is a prime.

It is a super-2 number, since 2×18428363793019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18428363793011) 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, 46302421392 + ... + 46302421789.

It is an arithmetic number, because the mean of its divisors is an integer number (4630242159100).

Almost surely, 2^{18428363793019} is an apocalyptic number.

18428363793019 is a deficient number, since it is larger than the sum of its proper divisors (92604843381).

18428363793019 is an equidigital number, since it uses as much as digits as its factorization.

18428363793019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92604843380.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 18428363793019 in words is "eighteen trillion, four hundred twenty-eight billion, three hundred sixty-three million, seven hundred ninety-three thousand, nineteen".