2119716538 has 4 divisors (see below), whose sum is σ = 3179574810. Its totient is φ = 1059858268.

The previous prime is 2119716509. The next prime is 2119716539. The reversal of 2119716538 is 8356179112.

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

It can be written as a sum of positive squares in only one way, i.e., 1768791249 + 350925289 = 42057^2 + 18733^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2119716494 and 2119716503.

It is not an unprimeable number, because it can be changed into a prime (2119716539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529929133 + ... + 529929136.

Almost surely, 2^2119716538 is an apocalyptic number.

2119716538 is a deficient number, since it is larger than the sum of its proper divisors (1059858272).

2119716538 is a wasteful number, since it uses less digits than its factorization.

2119716538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059858271.

The product of its digits is 90720, while the sum is 43.

The square root of 2119716538 is about 46040.3794293661. The cubic root of 2119716538 is about 1284.5743997738.

The spelling of 2119716538 in words is "two billion, one hundred nineteen million, seven hundred sixteen thousand, five hundred thirty-eight".