186243680494 has 16 divisors (see below), whose sum is σ = 279829442880. Its totient is φ = 92967285760.

The previous prime is 186243680473. The next prime is 186243680501. The reversal of 186243680494 is 494086342681.

186243680494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4727502 + ... + 4766734.

It is an arithmetic number, because the mean of its divisors is an integer number (17489340180).

Almost surely, 2^186243680494 is an apocalyptic number.

186243680494 is a deficient number, since it is larger than the sum of its proper divisors (93585762386).

186243680494 is a wasteful number, since it uses less digits than its factorization.

186243680494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43115.

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 186243680494 in words is "one hundred eighty-six billion, two hundred forty-three million, six hundred eighty thousand, four hundred ninety-four".