1886945312 has 54 divisors (see below), whose sum is σ = 4325384637. Its totient is φ = 807953664.

The previous prime is 1886945287. The next prime is 1886945341. The reversal of 1886945312 is 2135496881.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1794708496 + 92236816 = 42364^2 + 9604^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30716.

It is a super-2 number, since 2×1886945312² = 7121125220957554688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1719548 + ... + 1720644.

Almost surely, 2^1886945312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1886945312

1886945312 is an abundant number, since it is smaller than the sum of its proper divisors (2438439325).

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

1886945312 is an frugal number, since it uses more digits than its factorization.

1886945312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 1106 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1886945312 is about 43438.9837818520. The cubic root of 1886945312 is about 1235.7191333687.

The spelling of 1886945312 in words is "one billion, eight hundred eighty-six million, nine hundred forty-five thousand, three hundred twelve".