2111542241986 has 16 divisors (see below), whose sum is σ = 3186110315520. Its totient is φ = 1049514626160.

The previous prime is 2111542241909. The next prime is 2111542241987. The reversal of 2111542241986 is 6891422451112.

It is a super-2 number, since 2×2111542241986² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111542241987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826946 + ... + 2749693.

It is an arithmetic number, because the mean of its divisors is an integer number (199131894720).

Almost surely, 2^{2111542241986} is an apocalyptic number.

2111542241986 is a deficient number, since it is larger than the sum of its proper divisors (1074568073534).

2111542241986 is a wasteful number, since it uses less digits than its factorization.

2111542241986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578009.

The product of its digits is 276480, while the sum is 46.

The spelling of 2111542241986 in words is "two trillion, one hundred eleven billion, five hundred forty-two million, two hundred forty-one thousand, nine hundred eighty-six".