918212890627 has 2 divisors, whose sum is σ = 918212890628. Its totient is φ = 918212890626.

The previous prime is 918212890571. The next prime is 918212890649. The reversal of 918212890627 is 726098212819.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-918212890627 is a prime.

It is a super-2 number, since 2×918212890627² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (918212890667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459106445313 + 459106445314.

It is an arithmetic number, because the mean of its divisors is an integer number (459106445314).

Almost surely, 2^918212890627 is an apocalyptic number.

918212890627 is a deficient number, since it is larger than the sum of its proper divisors (1).

918212890627 is an equidigital number, since it uses as much as digits as its factorization.

918212890627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 918212890627 in words is "nine hundred eighteen billion, two hundred twelve million, eight hundred ninety thousand, six hundred twenty-seven".