10702443988681 has 3 divisors (see below), whose sum is σ = 10702447260141. Its totient is φ = 10702440717222.

The previous prime is 10702443988609. The next prime is 10702443988697. The reversal of 10702443988681 is 18688934420701.

The square root of 10702443988681 is 3271459.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 10702443988681 - 2⁹ = 10702443988169 is a prime.

It is a super-2 number, since 2×10702443988681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10702443983681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1635730 + ... + 4907188.

It is an arithmetic number, because the mean of its divisors is an integer number (3567482420047).

Almost surely, 2^{10702443988681} is an apocalyptic number.

10702443988681 is the 3271459-th square number.

10702443988681 is the 1635730-th centered octagonal number.

It is an amenable number.

10702443988681 is a deficient number, since it is larger than the sum of its proper divisors (3271460).

10702443988681 is an frugal number, since it uses more digits than its factorization.

10702443988681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542918 (or 3271459 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 10702443988681 in words is "ten trillion, seven hundred two billion, four hundred forty-three million, nine hundred eighty-eight thousand, six hundred eighty-one".