18743020287143 has 16 divisors (see below), whose sum is σ = 18844615855584. Its totient is φ = 18641601538560.

The previous prime is 18743020287139. The next prime is 18743020287151. The reversal of 18743020287143 is 34178202034781.

It is a cyclic number.

It is not a de Polignac number, because 18743020287143 - 2² = 18743020287139 is a prime.

It is a super-2 number, since 2×18743020287143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18743020287091 and 18743020287100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18743020287113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076124971 + ... + 1076142387.

It is an arithmetic number, because the mean of its divisors is an integer number (1177788490974).

Almost surely, 2^{18743020287143} is an apocalyptic number.

18743020287143 is a deficient number, since it is larger than the sum of its proper divisors (101595568441).

18743020287143 is a wasteful number, since it uses less digits than its factorization.

18743020287143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22162.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 18743020287143 in words is "eighteen trillion, seven hundred forty-three billion, twenty million, two hundred eighty-seven thousand, one hundred forty-three".