7439681916893 has 16 divisors (see below), whose sum is σ = 7476536770560. Its totient is φ = 7402922626176.

The previous prime is 7439681916889. The next prime is 7439681916913. The reversal of 7439681916893 is 3986191869347.

It is a cyclic number.

It is not a de Polignac number, because 7439681916893 - 2² = 7439681916889 is a prime.

It is a super-3 number, since 3×7439681916893³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7439681916893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7439681016893) 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, 484378148 + ... + 484393506.

It is an arithmetic number, because the mean of its divisors is an integer number (467283548160).

Almost surely, 2^{7439681916893} is an apocalyptic number.

It is an amenable number.

7439681916893 is a deficient number, since it is larger than the sum of its proper divisors (36854853667).

7439681916893 is a wasteful number, since it uses less digits than its factorization.

7439681916893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18316.

The product of its digits is 423263232, while the sum is 74.

The spelling of 7439681916893 in words is "seven trillion, four hundred thirty-nine billion, six hundred eighty-one million, nine hundred sixteen thousand, eight hundred ninety-three".