16313826847781 has 8 divisors (see below), whose sum is σ = 16421014569024. Its totient is φ = 16206725747520.

The previous prime is 16313826847771. The next prime is 16313826847807. The reversal of 16313826847781 is 18774862831361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16313826847781 is a prime.

It is a super-2 number, since 2×16313826847781² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16313826847771) 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, 21277316 + ... + 22030701.

It is an arithmetic number, because the mean of its divisors is an integer number (2052626821128).

Almost surely, 2^{16313826847781} is an apocalyptic number.

It is an amenable number.

16313826847781 is a deficient number, since it is larger than the sum of its proper divisors (107187721243).

16313826847781 is a wasteful number, since it uses less digits than its factorization.

16313826847781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43310491.

The product of its digits is 65028096, while the sum is 65.

The spelling of 16313826847781 in words is "sixteen trillion, three hundred thirteen billion, eight hundred twenty-six million, eight hundred forty-seven thousand, seven hundred eighty-one".