819018099108 has 36 divisors (see below), whose sum is σ = 2258504456208. Its totient is φ = 248187302640.

The previous prime is 819018099101. The next prime is 819018099113. The reversal of 819018099108 is 801990810918.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (819018099101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1034113366 + ... + 1034114157.

Almost surely, 2^819018099108 is an apocalyptic number.

It is an amenable number.

819018099108 is an abundant number, since it is smaller than the sum of its proper divisors (1439486357100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

819018099108 is a wasteful number, since it uses less digits than its factorization.

819018099108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068227544 (or 2068227539 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 54.

The spelling of 819018099108 in words is "eight hundred nineteen billion, eighteen million, ninety-nine thousand, one hundred eight".