18870174834 has 16 divisors (see below), whose sum is σ = 43131828288. Its totient is φ = 5391478512.

The previous prime is 18870174833. The next prime is 18870174839. The reversal of 18870174834 is 43847107881.

It is not an unprimeable number, because it can be changed into a prime (18870174833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224644897 + ... + 224644980.

It is an arithmetic number, because the mean of its divisors is an integer number (2695739268).

Almost surely, 2^18870174834 is an apocalyptic number.

18870174834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18870174834 is an abundant number, since it is smaller than the sum of its proper divisors (24261653454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18870174834 is a wasteful number, since it uses less digits than its factorization.

18870174834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449289889.

The product of its (nonzero) digits is 1204224, while the sum is 51.

The spelling of 18870174834 in words is "eighteen billion, eight hundred seventy million, one hundred seventy-four thousand, eight hundred thirty-four".