1018322581047 has 4 divisors (see below), whose sum is σ = 1357763441400. Its totient is φ = 678881720696.

The previous prime is 1018322581037. The next prime is 1018322581051. The reversal of 1018322581047 is 7401852238101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1018322581047 - 2¹⁴ = 1018322564663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018322581037) 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, 169720430172 + ... + 169720430177.

It is an arithmetic number, because the mean of its divisors is an integer number (339440860350).

Almost surely, 2^{1018322581047} is an apocalyptic number.

1018322581047 is a deficient number, since it is larger than the sum of its proper divisors (339440860353).

1018322581047 is an equidigital number, since it uses as much as digits as its factorization.

1018322581047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339440860352.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 1018322581047 in words is "one trillion, eighteen billion, three hundred twenty-two million, five hundred eighty-one thousand, forty-seven".