18492740101 has 4 divisors (see below), whose sum is σ = 20173898304. Its totient is φ = 16811581900.

The previous prime is 18492740099. The next prime is 18492740153. The reversal of 18492740101 is 10104729481.

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.

It is a cyclic number.

It is not a de Polignac number, because 18492740101 - 2¹ = 18492740099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18492740191) 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, 840579085 + ... + 840579106.

It is an arithmetic number, because the mean of its divisors is an integer number (5043474576).

Almost surely, 2^18492740101 is an apocalyptic number.

18492740101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18492740101 is a deficient number, since it is larger than the sum of its proper divisors (1681158203).

18492740101 is a wasteful number, since it uses less digits than its factorization.

18492740101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681158202.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 18492740101 in words is "eighteen billion, four hundred ninety-two million, seven hundred forty thousand, one hundred one".