1986986419711 has 2 divisors, whose sum is σ = 1986986419712. Its totient is φ = 1986986419710.

The previous prime is 1986986419703. The next prime is 1986986419727. The reversal of 1986986419711 is 1179146896891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1986986419711 - 2³ = 1986986419703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1986986419111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993493209855 + 993493209856.

It is an arithmetic number, because the mean of its divisors is an integer number (993493209856).

Almost surely, 2^{1986986419711} is an apocalyptic number.

1986986419711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1986986419711 is an equidigital number, since it uses as much as digits as its factorization.

1986986419711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 70.

The spelling of 1986986419711 in words is "one trillion, nine hundred eighty-six billion, nine hundred eighty-six million, four hundred nineteen thousand, seven hundred eleven".