1948539539143 has 8 divisors (see below), whose sum is σ = 1970509991040. Its totient is φ = 1926570792960.

The previous prime is 1948539539123. The next prime is 1948539539171. The reversal of 1948539539143 is 3419359358491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1948539539143 is a prime.

It is a super-2 number, since 2×1948539539143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948539539123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945098 + ... + 2771368.

It is an arithmetic number, because the mean of its divisors is an integer number (246313748880).

Almost surely, 2^{1948539539143} is an apocalyptic number.

1948539539143 is a deficient number, since it is larger than the sum of its proper divisors (21970451897).

1948539539143 is an equidigital number, since it uses as much as digits as its factorization.

1948539539143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852857.

The product of its digits is 62985600, while the sum is 64.

The spelling of 1948539539143 in words is "one trillion, nine hundred forty-eight billion, five hundred thirty-nine million, five hundred thirty-nine thousand, one hundred forty-three".