1618454674229 has 2 divisors, whose sum is σ = 1618454674230. Its totient is φ = 1618454674228.

The previous prime is 1618454674223. The next prime is 1618454674241. The reversal of 1618454674229 is 9224764548161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1618454674225 + 4 = 1272185^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1618454674229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1618454674223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809227337114 + 809227337115.

It is an arithmetic number, because the mean of its divisors is an integer number (809227337115).

Almost surely, 2^{1618454674229} is an apocalyptic number.

It is an amenable number.

1618454674229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1618454674229 is an equidigital number, since it uses as much as digits as its factorization.

1618454674229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 59.

The spelling of 1618454674229 in words is "one trillion, six hundred eighteen billion, four hundred fifty-four million, six hundred seventy-four thousand, two hundred twenty-nine".