1335947985793 has 4 divisors (see below), whose sum is σ = 1338295873860. Its totient is φ = 1333600097728.

The previous prime is 1335947985731. The next prime is 1335947985797. The reversal of 1335947985793 is 3975897495331.

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 123156777969 + 1212791207824 = 350937^2 + 1101268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1335947985793 - 2¹⁷ = 1335947854721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1335947985797) 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, 1173943180 + ... + 1173944317.

It is an arithmetic number, because the mean of its divisors is an integer number (334573968465).

Almost surely, 2^{1335947985793} is an apocalyptic number.

It is an amenable number.

1335947985793 is a deficient number, since it is larger than the sum of its proper divisors (2347888067).

1335947985793 is an equidigital number, since it uses as much as digits as its factorization.

1335947985793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347888066.

The product of its digits is 771573600, while the sum is 73.

The spelling of 1335947985793 in words is "one trillion, three hundred thirty-five billion, nine hundred forty-seven million, nine hundred eighty-five thousand, seven hundred ninety-three".