117225989857 has 2 divisors, whose sum is σ = 117225989858. Its totient is φ = 117225989856.

The previous prime is 117225989849. The next prime is 117225989863. The reversal of 117225989857 is 758989522711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94126853601 + 23099136256 = 306801^2 + 151984^2 .

It is a cyclic number.

It is not a de Polignac number, because 117225989857 - 2³ = 117225989849 is a prime.

It is not a weakly prime, because it can be changed into another prime (117225999857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58612994928 + 58612994929.

It is an arithmetic number, because the mean of its divisors is an integer number (58612994929).

Almost surely, 2^117225989857 is an apocalyptic number.

It is an amenable number.

117225989857 is a deficient number, since it is larger than the sum of its proper divisors (1).

117225989857 is an equidigital number, since it uses as much as digits as its factorization.

117225989857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25401600, while the sum is 64.

The spelling of 117225989857 in words is "one hundred seventeen billion, two hundred twenty-five million, nine hundred eighty-nine thousand, eight hundred fifty-seven".