117027678461 has 4 divisors (see below), whose sum is σ = 119882012124. Its totient is φ = 114173344800.

The previous prime is 117027678457. The next prime is 117027678463. The reversal of 117027678461 is 164876720711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28874505625 + 88153172836 = 169925^2 + 296906^2 .

It is a cyclic number.

It is not a de Polignac number, because 117027678461 - 2² = 117027678457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117027678463) by changing a digit.

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, 1427166770 + ... + 1427166851.

It is an arithmetic number, because the mean of its divisors is an integer number (29970503031).

Almost surely, 2^117027678461 is an apocalyptic number.

It is an amenable number.

117027678461 is a deficient number, since it is larger than the sum of its proper divisors (2854333663).

117027678461 is an equidigital number, since it uses as much as digits as its factorization.

117027678461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854333662.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 117027678461 in words is "one hundred seventeen billion, twenty-seven million, six hundred seventy-eight thousand, four hundred sixty-one".