12081950719 has 4 divisors (see below), whose sum is σ = 12082184296. Its totient is φ = 12081717144.

The previous prime is 12081950663. The next prime is 12081950723. The reversal of 12081950719 is 91705918021.

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

It is a cyclic number.

It is not a de Polignac number, because 12081950719 - 2⁷ = 12081950591 is a prime.

It is a super-2 number, since 2×12081950719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081950759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804 + ... + 155449.

It is an arithmetic number, because the mean of its divisors is an integer number (3020546074).

Almost surely, 2^12081950719 is an apocalyptic number.

12081950719 is a deficient number, since it is larger than the sum of its proper divisors (233577).

12081950719 is an equidigital number, since it uses as much as digits as its factorization.

12081950719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233576.

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 12081950719 in words is "twelve billion, eighty-one million, nine hundred fifty thousand, seven hundred nineteen".