186452323157 has 4 divisors (see below), whose sum is σ = 186453547020. Its totient is φ = 186451099296.

The previous prime is 186452323111. The next prime is 186452323237. The reversal of 186452323157 is 751323254681.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66130751281 + 120321571876 = 257159^2 + 346874^2 .

It is a cyclic number.

It is not a de Polignac number, because 186452323157 - 2⁶ = 186452323093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186452323357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344432 + ... + 701097.

It is an arithmetic number, because the mean of its divisors is an integer number (46613386755).

Almost surely, 2^186452323157 is an apocalyptic number.

It is an amenable number.

186452323157 is a deficient number, since it is larger than the sum of its proper divisors (1223863).

186452323157 is a wasteful number, since it uses less digits than its factorization.

186452323157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223862.

The product of its digits is 1209600, while the sum is 47.

The spelling of 186452323157 in words is "one hundred eighty-six billion, four hundred fifty-two million, three hundred twenty-three thousand, one hundred fifty-seven".