10091684818 has 4 divisors (see below), whose sum is σ = 15137527230. Its totient is φ = 5045842408.

The previous prime is 10091684809. The next prime is 10091684819. The reversal of 10091684818 is 81848619001.

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

It can be written as a sum of positive squares in only one way, i.e., 5948574129 + 4143110689 = 77127^2 + 64367^2 .

It is not an unprimeable number, because it can be changed into a prime (10091684819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2522921203 + ... + 2522921206.

Almost surely, 2^10091684818 is an apocalyptic number.

10091684818 is a deficient number, since it is larger than the sum of its proper divisors (5045842412).

10091684818 is an equidigital number, since it uses as much as digits as its factorization.

10091684818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045842411.

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 10091684818 in words is "ten billion, ninety-one million, six hundred eighty-four thousand, eight hundred eighteen".