1986517151682 has 16 divisors (see below), whose sum is σ = 4540610632512. Its totient is φ = 567576329040.

The previous prime is 1986517151659. The next prime is 1986517151693. The reversal of 1986517151682 is 2861517156891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23649013669 + ... + 23649013752.

It is an arithmetic number, because the mean of its divisors is an integer number (283788164532).

Almost surely, 2^{1986517151682} is an apocalyptic number.

1986517151682 is an abundant number, since it is smaller than the sum of its proper divisors (2554093480830).

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

1986517151682 is a wasteful number, since it uses less digits than its factorization.

1986517151682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47298027433.

The product of its digits is 7257600, while the sum is 60.

The spelling of 1986517151682 in words is "one trillion, nine hundred eighty-six billion, five hundred seventeen million, one hundred fifty-one thousand, six hundred eighty-two".