12071895421749 has 8 divisors (see below), whose sum is σ = 17042675889600. Its totient is φ = 7574522617536.

The previous prime is 12071895421679. The next prime is 12071895421787. The reversal of 12071895421749 is 94712459817021.

It is a happy number.

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

It is not a de Polignac number, because 12071895421749 - 2¹⁷ = 12071895290677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12071895421692 and 12071895421701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071895421799) 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, 118351915849 + ... + 118351915950.

It is an arithmetic number, because the mean of its divisors is an integer number (2130334486200).

Almost surely, 2^{12071895421749} is an apocalyptic number.

It is an amenable number.

12071895421749 is a deficient number, since it is larger than the sum of its proper divisors (4970780467851).

12071895421749 is a wasteful number, since it uses less digits than its factorization.

12071895421749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236703831819.

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 12071895421749 in words is "twelve trillion, seventy-one billion, eight hundred ninety-five million, four hundred twenty-one thousand, seven hundred forty-nine".