119618447881 has 9 divisors (see below), whose sum is σ = 120083350023. Its totient is φ = 119155342680.

The previous prime is 119618447869. The next prime is 119618447899. The reversal of 119618447881 is 188744816911.

The square root of 119618447881 is 345859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 87799023481 + 31819424400 = 296309^2 + 178380^2 .

It is not a de Polignac number, because 119618447881 - 2⁵ = 119618447849 is a prime.

It is a super-2 number, since 2×119618447881² (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 (119618447281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 120704296 + ... + 120705286.

It is an arithmetic number, because the mean of its divisors is an integer number (13342594447).

Almost surely, 2^119618447881 is an apocalyptic number.

119618447881 is the 345859-th square number.

119618447881 is the 172930-th centered octagonal number.

It is an amenable number.

119618447881 is a deficient number, since it is larger than the sum of its proper divisors (464902142).

119618447881 is an frugal number, since it uses more digits than its factorization.

119618447881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 1340 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 58.

The spelling of 119618447881 in words is "one hundred nineteen billion, six hundred eighteen million, four hundred forty-seven thousand, eight hundred eighty-one".