918319145971 has 2 divisors, whose sum is σ = 918319145972. Its totient is φ = 918319145970.

The previous prime is 918319145927. The next prime is 918319145983. The reversal of 918319145971 is 179541913819.

918319145971 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 is a cyclic number.

It is not a de Polignac number, because 918319145971 - 2¹⁵ = 918319113203 is a prime.

It is not a weakly prime, because it can be changed into another prime (918319145911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459159572985 + 459159572986.

It is an arithmetic number, because the mean of its divisors is an integer number (459159572986).

Almost surely, 2^918319145971 is an apocalyptic number.

918319145971 is a deficient number, since it is larger than the sum of its proper divisors (1).

918319145971 is an equidigital number, since it uses as much as digits as its factorization.

918319145971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 58.

The spelling of 918319145971 in words is "nine hundred eighteen billion, three hundred nineteen million, one hundred forty-five thousand, nine hundred seventy-one".