12048359724981 has 6 divisors (see below), whose sum is σ = 17403186269430. Its totient is φ = 8032239816648.

The previous prime is 12048359724977. The next prime is 12048359724983. The reversal of 12048359724981 is 18942795384021.

12048359724981 is a `hidden beast` number, since 1 + 2 + 0 + 48 + 35 + 9 + 72 + 498 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6447871818756 + 5600487906225 = 2539266^2 + 2366535^2 .

It is not a de Polignac number, because 12048359724981 - 2² = 12048359724977 is a prime.

It is a super-2 number, since 2×12048359724981² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12048359724983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 669353318046 + ... + 669353318063.

It is an arithmetic number, because the mean of its divisors is an integer number (2900531044905).

Almost surely, 2^{12048359724981} is an apocalyptic number.

It is an amenable number.

12048359724981 is a deficient number, since it is larger than the sum of its proper divisors (5354826544449).

12048359724981 is a wasteful number, since it uses less digits than its factorization.

12048359724981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338706636115 (or 1338706636112 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 12048359724981 in words is "twelve trillion, forty-eight billion, three hundred fifty-nine million, seven hundred twenty-four thousand, nine hundred eighty-one".