18101796450 has 48 divisors (see below), whose sum is σ = 44905625856. Its totient is φ = 4825729600.

The previous prime is 18101796397. The next prime is 18101796463. The reversal of 18101796450 is 5469710181.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557359 + ... + 588941.

It is an arithmetic number, because the mean of its divisors is an integer number (935533872).

Almost surely, 2^18101796450 is an apocalyptic number.

18101796450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18101796450 is an abundant number, since it is smaller than the sum of its proper divisors (26803829406).

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

18101796450 is a wasteful number, since it uses less digits than its factorization.

18101796450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35419 (or 35414 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 18101796450 in words is "eighteen billion, one hundred one million, seven hundred ninety-six thousand, four hundred fifty".