1948894335143 has 16 divisors (see below), whose sum is σ = 2256067918080. Its totient is φ = 1649021115456.

The previous prime is 1948894335133. The next prime is 1948894335181. The reversal of 1948894335143 is 3415334988491.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1948894335143 - 2⁸ = 1948894334887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948894335133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4385198 + ... + 4809131.

It is an arithmetic number, because the mean of its divisors is an integer number (141004244880).

Almost surely, 2^{1948894335143} is an apocalyptic number.

1948894335143 is a deficient number, since it is larger than the sum of its proper divisors (307173582937).

1948894335143 is a wasteful number, since it uses less digits than its factorization.

1948894335143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194726.

The product of its digits is 44789760, while the sum is 62.

The spelling of 1948894335143 in words is "one trillion, nine hundred forty-eight billion, eight hundred ninety-four million, three hundred thirty-five thousand, one hundred forty-three".