186361426361 has 4 divisors (see below), whose sum is σ = 203303374224. Its totient is φ = 169419478500.

The previous prime is 186361426343. The next prime is 186361426367. The reversal of 186361426361 is 163624163681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 186361426361 - 2²⁶ = 186294317497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186361426367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8470973915 + ... + 8470973936.

It is an arithmetic number, because the mean of its divisors is an integer number (50825843556).

Almost surely, 2^186361426361 is an apocalyptic number.

186361426361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

186361426361 is a deficient number, since it is larger than the sum of its proper divisors (16941947863).

186361426361 is a wasteful number, since it uses less digits than its factorization.

186361426361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16941947862.

The product of its digits is 746496, while the sum is 47.

The spelling of 186361426361 in words is "one hundred eighty-six billion, three hundred sixty-one million, four hundred twenty-six thousand, three hundred sixty-one".