18737498201 has 4 divisors (see below), whose sum is σ = 18743254452. Its totient is φ = 18731741952.

The previous prime is 18737498189. The next prime is 18737498207. The reversal of 18737498201 is 10289473781.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17425320025 + 1312178176 = 132005^2 + 36224^2 .

It is a cyclic number.

It is not a de Polignac number, because 18737498201 - 2¹⁴ = 18737481817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18737498201.

It is not an unprimeable number, because it can be changed into a prime (18737498207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873240 + ... + 2879753.

It is an arithmetic number, because the mean of its divisors is an integer number (4685813613).

Almost surely, 2^18737498201 is an apocalyptic number.

It is an amenable number.

18737498201 is a deficient number, since it is larger than the sum of its proper divisors (5756251).

18737498201 is an equidigital number, since it uses as much as digits as its factorization.

18737498201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756250.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 18737498201 in words is "eighteen billion, seven hundred thirty-seven million, four hundred ninety-eight thousand, two hundred one".