18574821201 has 16 divisors (see below), whose sum is σ = 25085986560. Its totient is φ = 12223511040.

The previous prime is 18574821193. The next prime is 18574821263. The reversal of 18574821201 is 10212847581.

It is not a de Polignac number, because 18574821201 - 2³ = 18574821193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18574821201.

It is not an unprimeable number, because it can be changed into a prime (18574821281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442371 + ... + 1455191.

It is an arithmetic number, because the mean of its divisors is an integer number (1567874160).

Almost surely, 2^18574821201 is an apocalyptic number.

It is an amenable number.

18574821201 is a deficient number, since it is larger than the sum of its proper divisors (6511165359).

18574821201 is a wasteful number, since it uses less digits than its factorization.

18574821201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19016.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 18574821201 in words is "eighteen billion, five hundred seventy-four million, eight hundred twenty-one thousand, two hundred one".