186961507113 has 8 divisors (see below), whose sum is σ = 249820417408. Its totient is φ = 124371800784.

The previous prime is 186961507111. The next prime is 186961507123. The reversal of 186961507113 is 311705169681.

186961507113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 186961507113 - 2¹ = 186961507111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186961507111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67299370 + ... + 67302147.

It is an arithmetic number, because the mean of its divisors is an integer number (31227552176).

Almost surely, 2^186961507113 is an apocalyptic number.

It is an amenable number.

186961507113 is a deficient number, since it is larger than the sum of its proper divisors (62858910295).

186961507113 is a wasteful number, since it uses less digits than its factorization.

186961507113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134601983.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 186961507113 in words is "one hundred eighty-six billion, nine hundred sixty-one million, five hundred seven thousand, one hundred thirteen".