8931252187138 has 16 divisors (see below), whose sum is σ = 14185621351800. Its totient is φ = 4202737344256.

The previous prime is 8931252187133. The next prime is 8931252187271. The reversal of 8931252187138 is 8317812521398.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7768277588569 + 1162974598569 = 2787163^2 + 1078413^2 .

It is not an unprimeable number, because it can be changed into a prime (8931252187133) by changing a digit.

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, 5692981 + ... + 7090312.

Almost surely, 2^{8931252187138} is an apocalyptic number.

8931252187138 is a deficient number, since it is larger than the sum of its proper divisors (5254369164662).

8931252187138 is a wasteful number, since it uses less digits than its factorization.

8931252187138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12803861.

The product of its digits is 5806080, while the sum is 58.

The spelling of 8931252187138 in words is "eight trillion, nine hundred thirty-one billion, two hundred fifty-two million, one hundred eighty-seven thousand, one hundred thirty-eight".