1848694968481 has 4 divisors (see below), whose sum is σ = 1848790829700. Its totient is φ = 1848599107264.

The previous prime is 1848694968451. The next prime is 1848694968509.

1848694968481 is nontrivially palindromic in base 10.

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 896460537856 + 952234430625 = 946816^2 + 975825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1848694968481 - 2⁹ = 1848694967969 is a prime.

It is a super-2 number, since 2×1848694968481² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1848694968398 and 1848694968407.

It is not an unprimeable number, because it can be changed into a prime (1848694968451) 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, 47901676 + ... + 47940253.

It is an arithmetic number, because the mean of its divisors is an integer number (462197707425).

Almost surely, 2^{1848694968481} is an apocalyptic number.

It is an amenable number.

1848694968481 is a deficient number, since it is larger than the sum of its proper divisors (95861219).

1848694968481 is an equidigital number, since it uses as much as digits as its factorization.

1848694968481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95861218.

The product of its digits is 764411904, while the sum is 76.

The spelling of 1848694968481 in words is "one trillion, eight hundred forty-eight billion, six hundred ninety-four million, nine hundred sixty-eight thousand, four hundred eighty-one".