2119680018 has 24 divisors (see below), whose sum is σ = 4595418828. Its totient is φ = 706132512.

The previous prime is 2119680011. The next prime is 2119680019. The reversal of 2119680018 is 8100869112.

It can be written as a sum of positive squares in 2 ways, for example, as 2112045849 + 7634169 = 45957^2 + 2763^2 .

It is not an unprimeable number, because it can be changed into a prime (2119680011) 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, 4305 + ... + 65252.

Almost surely, 2^2119680018 is an apocalyptic number.

2119680018 is an abundant number, since it is smaller than the sum of its proper divisors (2475738810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2119680018 is a wasteful number, since it uses less digits than its factorization.

2119680018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71258 (or 71255 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 2119680018 is about 46039.9828192844. The cubic root of 2119680018 is about 1284.5670225411.

The spelling of 2119680018 in words is "two billion, one hundred nineteen million, six hundred eighty thousand, eighteen".