118077561819 has 12 divisors (see below), whose sum is σ = 194921689456. Its totient is φ = 67472892432.

The previous prime is 118077561751. The next prime is 118077561859. The reversal of 118077561819 is 918165770811.

118077561819 is a `hidden beast` number, since 1 + 1 + 8 + 0 + 7 + 7 + 5 + 618 + 19 = 666.

It is not a de Polignac number, because 118077561819 - 2⁹ = 118077561307 is a prime.

It is a super-2 number, since 2×118077561819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118077561859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937123444 + ... + 937123569.

Almost surely, 2^118077561819 is an apocalyptic number.

118077561819 is a deficient number, since it is larger than the sum of its proper divisors (76844127637).

118077561819 is a wasteful number, since it uses less digits than its factorization.

118077561819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874247026 (or 1874247023 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 54.

The spelling of 118077561819 in words is "one hundred eighteen billion, seventy-seven million, five hundred sixty-one thousand, eight hundred nineteen".