106748640818 has 4 divisors (see below), whose sum is σ = 160122961230. Its totient is φ = 53374320408.

The previous prime is 106748640769. The next prime is 106748640863. The reversal of 106748640818 is 818046847601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 818046847601 = 137 ⋅5971144873.

It can be written as a sum of positive squares in only one way, i.e., 91653324049 + 15095316769 = 302743^2 + 122863^2 .

It is a super-2 number, since 2×106748640818² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106748640818.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26687160203 + ... + 26687160206.

Almost surely, 2^106748640818 is an apocalyptic number.

106748640818 is a deficient number, since it is larger than the sum of its proper divisors (53374320412).

106748640818 is an equidigital number, since it uses as much as digits as its factorization.

106748640818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53374320411.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 106748640818 in words is "one hundred six billion, seven hundred forty-eight million, six hundred forty thousand, eight hundred eighteen".