1986626112 has 112 divisors (see below), whose sum is σ = 5361919680. Its totient is φ = 649009152.

The previous prime is 1986626087. The next prime is 1986626113. The reversal of 1986626112 is 2116266891.

It is not an unprimeable number, because it can be changed into a prime (1986626113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5003898 + ... + 5004294.

Almost surely, 2^1986626112 is an apocalyptic number.

1986626112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1986626112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2680959840).

1986626112 is an abundant number, since it is smaller than the sum of its proper divisors (3375293568).

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

1986626112 is a wasteful number, since it uses less digits than its factorization.

1986626112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 858 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1986626112 is about 44571.5841315967. The cubic root of 1986626112 is about 1257.1064262957.

The spelling of 1986626112 in words is "one billion, nine hundred eighty-six million, six hundred twenty-six thousand, one hundred twelve".