1968229189285 has 8 divisors (see below), whose sum is σ = 2500808852376. Its totient is φ = 1481960801280.

The previous prime is 1968229189237. The next prime is 1968229189309. The reversal of 1968229189285 is 5829819228691.

It can be written as a sum of positive squares in 4 ways, for example, as 66916377124 + 1901312812161 = 258682^2 + 1378881^2 .

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

It is not a de Polignac number, because 1968229189285 - 2²³ = 1968220800677 is a prime.

It is a super-2 number, since 2×1968229189285² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11577818676 + ... + 11577818845.

It is an arithmetic number, because the mean of its divisors is an integer number (312601106547).

Almost surely, 2^{1968229189285} is an apocalyptic number.

It is an amenable number.

1968229189285 is a deficient number, since it is larger than the sum of its proper divisors (532579663091).

1968229189285 is a wasteful number, since it uses less digits than its factorization.

1968229189285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23155637543.

The product of its digits is 89579520, while the sum is 70.

The spelling of 1968229189285 in words is "one trillion, nine hundred sixty-eight billion, two hundred twenty-nine million, one hundred eighty-nine thousand, two hundred eighty-five".