10712816981 has 4 divisors (see below), whose sum is σ = 10713103200. Its totient is φ = 10712530764.

The previous prime is 10712816963. The next prime is 10712816993. The reversal of 10712816981 is 18961821701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10712816981 is a prime.

It is a super-2 number, since 2×10712816981² (a number of 21 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 (10712816281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76691 + ... + 165248.

It is an arithmetic number, because the mean of its divisors is an integer number (2678275800).

Almost surely, 2^10712816981 is an apocalyptic number.

It is an amenable number.

10712816981 is a deficient number, since it is larger than the sum of its proper divisors (286219).

10712816981 is an equidigital number, since it uses as much as digits as its factorization.

10712816981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286218.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 10712816981 in words is "ten billion, seven hundred twelve million, eight hundred sixteen thousand, nine hundred eighty-one".