1948926996481 has 4 divisors (see below), whose sum is σ = 2016131375700. Its totient is φ = 1881722617264.

The previous prime is 1948926996479. The next prime is 1948926996491. The reversal of 1948926996481 is 1846996298491.

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 1180471385025 + 768455611456 = 1086495^2 + 876616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948926996481 - 2¹ = 1948926996479 is a prime.

It is a super-2 number, since 2×1948926996481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1948926996398 and 1948926996407.

It is not an unprimeable number, because it can be changed into a prime (1948926996461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33602189566 + ... + 33602189623.

It is an arithmetic number, because the mean of its divisors is an integer number (504032843925).

Almost surely, 2^{1948926996481} is an apocalyptic number.

It is an amenable number.

1948926996481 is a deficient number, since it is larger than the sum of its proper divisors (67204379219).

1948926996481 is an equidigital number, since it uses as much as digits as its factorization.

1948926996481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67204379218.

The product of its digits is 483729408, while the sum is 76.

The spelling of 1948926996481 in words is "one trillion, nine hundred forty-eight billion, nine hundred twenty-six million, nine hundred ninety-six thousand, four hundred eighty-one".