1986873249136 has 80 divisors (see below), whose sum is σ = 4286883979008. Its totient is φ = 887765299200.

The previous prime is 1986873249107. The next prime is 1986873249199. The reversal of 1986873249136 is 6319423786891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776075 + ... + 2669866.

Almost surely, 2^{1986873249136} is an apocalyptic number.

1986873249136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1986873249136 is an abundant number, since it is smaller than the sum of its proper divisors (2300010729872).

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

1986873249136 is a wasteful number, since it uses less digits than its factorization.

1986873249136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446050 (or 4446044 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 67.

The spelling of 1986873249136 in words is "one trillion, nine hundred eighty-six billion, eight hundred seventy-three million, two hundred forty-nine thousand, one hundred thirty-six".