12141650481857 has 4 divisors (see below), whose sum is σ = 13075623595860. Its totient is φ = 11207677367856.

The previous prime is 12141650481811. The next prime is 12141650481881. The reversal of 12141650481857 is 75818405614121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 787237405696 + 11354413076161 = 887264^2 + 3369631^2 .

It is a cyclic number.

It is not a de Polignac number, because 12141650481857 - 2¹⁴ = 12141650465473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12141650481799 and 12141650481808.

It is not an unprimeable number, because it can be changed into a prime (12141650480857) 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, 466986556982 + ... + 466986557007.

It is an arithmetic number, because the mean of its divisors is an integer number (3268905898965).

Almost surely, 2^{12141650481857} is an apocalyptic number.

It is an amenable number.

12141650481857 is a deficient number, since it is larger than the sum of its proper divisors (933973114003).

12141650481857 is an equidigital number, since it uses as much as digits as its factorization.

12141650481857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933973114002.

The product of its (nonzero) digits is 2150400, while the sum is 53.

The spelling of 12141650481857 in words is "twelve trillion, one hundred forty-one billion, six hundred fifty million, four hundred eighty-one thousand, eight hundred fifty-seven".