2018631047 has 2 divisors, whose sum is σ = 2018631048. Its totient is φ = 2018631046.

The previous prime is 2018631031. The next prime is 2018631103. The reversal of 2018631047 is 7401368102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2018631047 - 2⁴ = 2018631031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018631347) 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, 1009315523 + 1009315524.

It is an arithmetic number, because the mean of its divisors is an integer number (1009315524).

Almost surely, 2^2018631047 is an apocalyptic number.

2018631047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018631047 is an equidigital number, since it uses as much as digits as its factorization.

2018631047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2018631047 is about 44929.1781251338. The cubic root of 2018631047 is about 1263.8212387985.

Adding to 2018631047 its reverse (7401368102), we get a palindrome (9419999149).

The spelling of 2018631047 in words is "two billion, eighteen million, six hundred thirty-one thousand, forty-seven".