118877420485 has 4 divisors (see below), whose sum is σ = 142652904588. Its totient is φ = 95101936384.

The previous prime is 118877420423. The next prime is 118877420503. The reversal of 118877420485 is 584024778811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584024778811 = 199819 ⋅2922769.

It can be written as a sum of positive squares in 2 ways, for example, as 83756411649 + 35121008836 = 289407^2 + 187406^2 .

It is a cyclic number.

It is not a de Polignac number, because 118877420485 - 2¹³ = 118877412293 is a prime.

It is a super-2 number, since 2×118877420485² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11887742044 + ... + 11887742053.

It is an arithmetic number, because the mean of its divisors is an integer number (35663226147).

Almost surely, 2^118877420485 is an apocalyptic number.

It is an amenable number.

118877420485 is a deficient number, since it is larger than the sum of its proper divisors (23775484103).

118877420485 is an equidigital number, since it uses as much as digits as its factorization.

118877420485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23775484102.

The product of its (nonzero) digits is 4014080, while the sum is 55.

The spelling of 118877420485 in words is "one hundred eighteen billion, eight hundred seventy-seven million, four hundred twenty thousand, four hundred eighty-five".