1986927141 has 16 divisors (see below), whose sum is σ = 2752689600. Its totient is φ = 1273294848.

The previous prime is 1986927127. The next prime is 1986927157. The reversal of 1986927141 is 1417296891.

It is not a de Polignac number, because 1986927141 - 2⁶ = 1986927077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1986927161) 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, 30556 + ... + 70053.

It is an arithmetic number, because the mean of its divisors is an integer number (172043100).

Almost surely, 2^1986927141 is an apocalyptic number.

It is an amenable number.

1986927141 is a deficient number, since it is larger than the sum of its proper divisors (765762459).

1986927141 is a wasteful number, since it uses less digits than its factorization.

1986927141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100868.

The product of its digits is 217728, while the sum is 48.

The square root of 1986927141 is about 44574.9609197810. The cubic root of 1986927141 is about 1257.1699185948.

The spelling of 1986927141 in words is "one billion, nine hundred eighty-six million, nine hundred twenty-seven thousand, one hundred forty-one".