299981856693 has 16 divisors (see below), whose sum is σ = 406884459456. Its totient is φ = 196562486400.

The previous prime is 299981856689. The next prime is 299981856721. The reversal of 299981856693 is 396658189992.

It is a happy number.

It is not a de Polignac number, because 299981856693 - 2² = 299981856689 is a prime.

It is a super-2 number, since 2×299981856693² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299981856613) 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, 3571771 + ... + 3654792.

It is an arithmetic number, because the mean of its divisors is an integer number (25430278716).

Almost surely, 2^299981856693 is an apocalyptic number.

It is an amenable number.

299981856693 is a deficient number, since it is larger than the sum of its proper divisors (106902602763).

299981856693 is a wasteful number, since it uses less digits than its factorization.

299981856693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226804.

The product of its digits is 453496320, while the sum is 75.

The spelling of 299981856693 in words is "two hundred ninety-nine billion, nine hundred eighty-one million, eight hundred fifty-six thousand, six hundred ninety-three".