187851382613069 has 12 divisors (see below), whose sum is σ = 218529433704384. Its totient is φ = 161009253629784.

The previous prime is 187851382613051. The next prime is 187851382613099. The reversal of 187851382613069 is 960316283158781.

It is a de Polignac number, because none of the positive numbers 2^k-187851382613069 is a prime.

It is a super-2 number, since 2×187851382613069² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187851382613099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72731867 + ... + 75270360.

It is an arithmetic number, because the mean of its divisors is an integer number (18210786142032).

Almost surely, 2^{187851382613069} is an apocalyptic number.

It is an amenable number.

187851382613069 is a deficient number, since it is larger than the sum of its proper divisors (30678051091315).

187851382613069 is a wasteful number, since it uses less digits than its factorization.

187851382613069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148028144 (or 148028137 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 187851382613069 in words is "one hundred eighty-seven trillion, eight hundred fifty-one billion, three hundred eighty-two million, six hundred thirteen thousand, sixty-nine".