918961752949 has 2 divisors, whose sum is σ = 918961752950. Its totient is φ = 918961752948.

The previous prime is 918961752937. The next prime is 918961753043. The reversal of 918961752949 is 949257169819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 596689816849 + 322271936100 = 772457^2 + 567690^2 .

It is a cyclic number.

It is not a de Polignac number, because 918961752949 - 2¹¹ = 918961750901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918961752649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459480876474 + 459480876475.

It is an arithmetic number, because the mean of its divisors is an integer number (459480876475).

Almost surely, 2^918961752949 is an apocalyptic number.

It is an amenable number.

918961752949 is a deficient number, since it is larger than the sum of its proper divisors (1).

918961752949 is an equidigital number, since it uses as much as digits as its factorization.

918961752949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 70.

The spelling of 918961752949 in words is "nine hundred eighteen billion, nine hundred sixty-one million, seven hundred fifty-two thousand, nine hundred forty-nine".