23287187386 has 16 divisors (see below), whose sum is σ = 35164027944. Its totient is φ = 11566024704.

The previous prime is 23287187353. The next prime is 23287187411. The reversal of 23287187386 is 68378178232.

It can be written as a sum of positive squares in 4 ways, for example, as 22314683161 + 972504225 = 149381^2 + 31185^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 216766 + ... + 305878.

Almost surely, 2^23287187386 is an apocalyptic number.

23287187386 is a deficient number, since it is larger than the sum of its proper divisors (11876840558).

23287187386 is a wasteful number, since it uses less digits than its factorization.

23287187386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89985.

The product of its digits is 5419008, while the sum is 55.

The spelling of 23287187386 in words is "twenty-three billion, two hundred eighty-seven million, one hundred eighty-seven thousand, three hundred eighty-six".