918319145956 has 6 divisors (see below), whose sum is σ = 1607058505430. Its totient is φ = 459159572976.

The previous prime is 918319145927. The next prime is 918319145971. The reversal of 918319145956 is 659541913819.

It can be written as a sum of positive squares in only one way, i.e., 512919521856 + 405399624100 = 716184^2 + 636710^2 .

It is a junction number, because it is equal to n+sod(n) for n = 918319145894 and 918319145903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114789893241 + ... + 114789893248.

Almost surely, 2^918319145956 is an apocalyptic number.

It is an amenable number.

918319145956 is a deficient number, since it is larger than the sum of its proper divisors (688739359474).

918319145956 is a wasteful number, since it uses less digits than its factorization.

918319145956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229579786493 (or 229579786491 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 61.

The spelling of 918319145956 in words is "nine hundred eighteen billion, three hundred nineteen million, one hundred forty-five thousand, nine hundred fifty-six".