186419684242 has 32 divisors (see below), whose sum is σ = 312363786240. Its totient is φ = 82707490320.

The previous prime is 186419684233. The next prime is 186419684309. The reversal of 186419684242 is 242486914681.

It is a super-2 number, since 2×186419684242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292823 + ... + 1429765.

It is an arithmetic number, because the mean of its divisors is an integer number (9761368320).

Almost surely, 2^186419684242 is an apocalyptic number.

186419684242 is a deficient number, since it is larger than the sum of its proper divisors (125944101998).

186419684242 is a wasteful number, since it uses less digits than its factorization.

186419684242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138438.

The product of its digits is 5308416, while the sum is 55.

The spelling of 186419684242 in words is "one hundred eighty-six billion, four hundred nineteen million, six hundred eighty-four thousand, two hundred forty-two".