18702740101 has 4 divisors (see below), whose sum is σ = 18704084652. Its totient is φ = 18701395552.

The previous prime is 18702740047. The next prime is 18702740137. The reversal of 18702740101 is 10104720781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10104720781 = 71 ⋅142320011.

It can be written as a sum of positive squares in 2 ways, for example, as 9044961025 + 9657779076 = 95105^2 + 98274^2 .

It is a cyclic number.

It is not a de Polignac number, because 18702740101 - 2⁷ = 18702739973 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 (18702740201) 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, 651190 + ... + 679303.

It is an arithmetic number, because the mean of its divisors is an integer number (4676021163).

Almost surely, 2^18702740101 is an apocalyptic number.

It is an amenable number.

18702740101 is a deficient number, since it is larger than the sum of its proper divisors (1344551).

18702740101 is a wasteful number, since it uses less digits than its factorization.

18702740101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344550.

The product of its (nonzero) digits is 3136, while the sum is 31.

The spelling of 18702740101 in words is "eighteen billion, seven hundred two million, seven hundred forty thousand, one hundred one".