18871430004319 has 8 divisors (see below), whose sum is σ = 18893882522160. Its totient is φ = 18848982087936.

The previous prime is 18871430004257. The next prime is 18871430004433. The reversal of 18871430004319 is 91340003417881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18871430004319 - 2⁷ = 18871430004191 is a prime.

It is a super-2 number, since 2×18871430004319² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18871430004919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7091977 + ... + 9382909.

It is an arithmetic number, because the mean of its divisors is an integer number (2361735315270).

Almost surely, 2^{18871430004319} is an apocalyptic number.

18871430004319 is a deficient number, since it is larger than the sum of its proper divisors (22452517841).

18871430004319 is an equidigital number, since it uses as much as digits as its factorization.

18871430004319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300729.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 18871430004319 in words is "eighteen trillion, eight hundred seventy-one billion, four hundred thirty million, four thousand, three hundred nineteen".