118854501617 has 2 divisors, whose sum is σ = 118854501618. Its totient is φ = 118854501616.

The previous prime is 118854501583. The next prime is 118854501643. The reversal of 118854501617 is 716105458811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112262523136 + 6591978481 = 335056^2 + 81191^2 .

It is a cyclic number.

It is not a de Polignac number, because 118854501617 - 2⁶ = 118854501553 is a prime.

It is a super-2 number, since 2×118854501617² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118854501917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59427250808 + 59427250809.

It is an arithmetic number, because the mean of its divisors is an integer number (59427250809).

Almost surely, 2^118854501617 is an apocalyptic number.

It is an amenable number.

118854501617 is a deficient number, since it is larger than the sum of its proper divisors (1).

118854501617 is an equidigital number, since it uses as much as digits as its factorization.

118854501617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 47.

The spelling of 118854501617 in words is "one hundred eighteen billion, eight hundred fifty-four million, five hundred one thousand, six hundred seventeen".