1986116476500 has 1440 divisors, whose sum is σ = 7339934714112. Its totient is φ = 467026560000.

The previous prime is 1986116476457. The next prime is 1986116476543. The reversal of 1986116476500 is 56746116891.

1986116476500 is a `hidden beast` number, since 1 + 9 + 8 + 6 + 1 + 1 + 64 + 76 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (1986116476457) and next prime (1986116476543).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 27973471465 + ... + 27973471535.

Almost surely, 2^{1986116476500} is an apocalyptic number.

1986116476500 is a gapful number since it is divisible by the number (10) 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 1986116476500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669967357056).

1986116476500 is an abundant number, since it is smaller than the sum of its proper divisors (5353818237612).

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

1986116476500 is a wasteful number, since it uses less digits than its factorization.

1986116476500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1986116476500 in words is "one trillion, nine hundred eighty-six billion, one hundred sixteen million, four hundred seventy-six thousand, five hundred".