18937058243 has 2 divisors, whose sum is σ = 18937058244. Its totient is φ = 18937058242.

The previous prime is 18937058233. The next prime is 18937058249. The reversal of 18937058243 is 34285073981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18937058243 - 2¹⁴ = 18937041859 is a prime.

It is a super-2 number, since 2×18937058243² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18937058191 and 18937058200.

It is not a weakly prime, because it can be changed into another prime (18937058249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9468529121 + 9468529122.

It is an arithmetic number, because the mean of its divisors is an integer number (9468529122).

Almost surely, 2^18937058243 is an apocalyptic number.

18937058243 is a deficient number, since it is larger than the sum of its proper divisors (1).

18937058243 is an equidigital number, since it uses as much as digits as its factorization.

18937058243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 18937058243 in words is "eighteen billion, nine hundred thirty-seven million, fifty-eight thousand, two hundred forty-three".