2010019986 has 48 divisors (see below), whose sum is σ = 4851788760. Its totient is φ = 597139200.

The previous prime is 2010019981. The next prime is 2010020003. The reversal of 2010019986 is 6899100102.

It can be written as a sum of positive squares in 4 ways, for example, as 1526855625 + 483164361 = 39075^2 + 21981^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2010019986.

It is not an unprimeable number, because it can be changed into a prime (2010019981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141315 + ... + 154886.

Almost surely, 2^2010019986 is an apocalyptic number.

2010019986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2010019986 is an abundant number, since it is smaller than the sum of its proper divisors (2841768774).

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

2010019986 is a wasteful number, since it uses less digits than its factorization.

2010019986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296251 (or 296248 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 2010019986 is about 44833.2464360992. The cubic root of 2010019986 is about 1262.0216110719.

The spelling of 2010019986 in words is "two billion, ten million, nineteen thousand, nine hundred eighty-six".