18747283212653 has 4 divisors (see below), whose sum is σ = 18803921530848. Its totient is φ = 18690644894460.

The previous prime is 18747283212643. The next prime is 18747283212703. The reversal of 18747283212653 is 35621238274781.

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 18747283212653 - 2⁶ = 18747283212589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18747283212592 and 18747283212601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18747283212643) 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, 28319158601 + ... + 28319159262.

It is an arithmetic number, because the mean of its divisors is an integer number (4700980382712).

Almost surely, 2^{18747283212653} is an apocalyptic number.

It is an amenable number.

18747283212653 is a deficient number, since it is larger than the sum of its proper divisors (56638318195).

18747283212653 is an equidigital number, since it uses as much as digits as its factorization.

18747283212653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56638318194.

The product of its digits is 27095040, while the sum is 59.

The spelling of 18747283212653 in words is "eighteen trillion, seven hundred forty-seven billion, two hundred eighty-three million, two hundred twelve thousand, six hundred fifty-three".