1888859912164 has 9 divisors (see below), whose sum is σ = 3305509656547. Its totient is φ = 944428581724.

The previous prime is 1888859912123. The next prime is 1888859912167. The reversal of 1888859912164 is 4612199588881.

The square root of 1888859912164 is 1374358.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1888859912093 and 1888859912102.

It is not an unprimeable number, because it can be changed into a prime (1888859912167) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2405127 + ... + 3092305.

Almost surely, 2^{1888859912164} is an apocalyptic number.

1888859912164 is the 1374358-th square number.

It is an amenable number.

1888859912164 is a deficient number, since it is larger than the sum of its proper divisors (1416649744383).

1888859912164 is an frugal number, since it uses more digits than its factorization.

1888859912164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374362 (or 687181 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 70.

The spelling of 1888859912164 in words is "one trillion, eight hundred eighty-eight billion, eight hundred fifty-nine million, nine hundred twelve thousand, one hundred sixty-four".