11851539089 has 8 divisors (see below), whose sum is σ = 13074493992. Its totient is φ = 10673055360.

The previous prime is 11851539083. The next prime is 11851539131. The reversal of 11851539089 is 98093515811.

It can be written as a sum of positive squares in 4 ways, for example, as 2188649089 + 9662890000 = 46783^2 + 98300^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11851539089 - 2¹⁶ = 11851473553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11851539083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11117234 + ... + 11118299.

It is an arithmetic number, because the mean of its divisors is an integer number (1634311749).

Almost surely, 2^11851539089 is an apocalyptic number.

It is an amenable number.

11851539089 is a deficient number, since it is larger than the sum of its proper divisors (1222954903).

11851539089 is a wasteful number, since it uses less digits than its factorization.

11851539089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22235587.

The product of its (nonzero) digits is 388800, while the sum is 50.

The spelling of 11851539089 in words is "eleven billion, eight hundred fifty-one million, five hundred thirty-nine thousand, eighty-nine".