2918188729 has 2 divisors, whose sum is σ = 2918188730. Its totient is φ = 2918188728.

The previous prime is 2918188681. The next prime is 2918188759. The reversal of 2918188729 is 9278818192.

2918188729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2265284025 + 652904704 = 47595^2 + 25552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2918188729 - 2¹¹ = 2918186681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2918188729.

It is not a weakly prime, because it can be changed into another prime (2918188759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1459094364 + 1459094365.

It is an arithmetic number, because the mean of its divisors is an integer number (1459094365).

Almost surely, 2^2918188729 is an apocalyptic number.

It is an amenable number.

2918188729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2918188729 is an equidigital number, since it uses as much as digits as its factorization.

2918188729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 55.

The square root of 2918188729 is about 54020.2622078050. The cubic root of 2918188729 is about 1429.0183049807.

The spelling of 2918188729 in words is "two billion, nine hundred eighteen million, one hundred eighty-eight thousand, seven hundred twenty-nine".