18050638701 has 4 divisors (see below), whose sum is σ = 24067518272. Its totient is φ = 12033759132.

The previous prime is 18050638699. The next prime is 18050638741. The reversal of 18050638701 is 10783605081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10783605081 = 3 ⋅3594535027.

It is not a de Polignac number, because 18050638701 - 2¹ = 18050638699 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 18050638701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050638741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008439781 + ... + 3008439786.

It is an arithmetic number, because the mean of its divisors is an integer number (6016879568).

Almost surely, 2^18050638701 is an apocalyptic number.

It is an amenable number.

18050638701 is a deficient number, since it is larger than the sum of its proper divisors (6016879571).

18050638701 is an equidigital number, since it uses as much as digits as its factorization.

18050638701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016879570.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 18050638701 in words is "eighteen billion, fifty million, six hundred thirty-eight thousand, seven hundred one".