109018512418 has 4 divisors (see below), whose sum is σ = 163527768630. Its totient is φ = 54509256208.

The previous prime is 109018512409. The next prime is 109018512437. The reversal of 109018512418 is 814215810901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814215810901 = 83 ⋅9809829047.

It can be written as a sum of positive squares in only one way, i.e., 90115837249 + 18902675169 = 300193^2 + 137487^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27254628103 + ... + 27254628106.

Almost surely, 2^109018512418 is an apocalyptic number.

109018512418 is a deficient number, since it is larger than the sum of its proper divisors (54509256212).

109018512418 is an equidigital number, since it uses as much as digits as its factorization.

109018512418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54509256211.

The product of its (nonzero) digits is 23040, while the sum is 40.

The spelling of 109018512418 in words is "one hundred nine billion, eighteen million, five hundred twelve thousand, four hundred eighteen".