1642968893743 has 8 divisors (see below), whose sum is σ = 1645184997360. Its totient is φ = 1640753117760.

The previous prime is 1642968893737. The next prime is 1642968893791. The reversal of 1642968893743 is 3473988692461.

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

It is a cyclic number.

It is not a de Polignac number, because 1642968893743 - 2⁹ = 1642968893231 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 (1642968893723) 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, 10950573 + ... + 11099593.

It is an arithmetic number, because the mean of its divisors is an integer number (205648124670).

Almost surely, 2^{1642968893743} is an apocalyptic number.

1642968893743 is a deficient number, since it is larger than the sum of its proper divisors (2216103617).

1642968893743 is a wasteful number, since it uses less digits than its factorization.

1642968893743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163817.

The product of its digits is 376233984, while the sum is 70.

The spelling of 1642968893743 in words is "one trillion, six hundred forty-two billion, nine hundred sixty-eight million, eight hundred ninety-three thousand, seven hundred forty-three".