10726997081 has 4 divisors (see below), whose sum is σ = 10798990500. Its totient is φ = 10655003664.

The previous prime is 10726997069. The next prime is 10726997101. The reversal of 10726997081 is 18079962701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18079962701 = 28429 ⋅635969.

It can be written as a sum of positive squares in 2 ways, for example, as 1595283481 + 9131713600 = 39941^2 + 95560^2 .

It is a cyclic number.

It is not a de Polignac number, because 10726997081 - 2¹⁰ = 10726996057 is a prime.

It is a super-2 number, since 2×10726997081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10726997041) 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, 35996486 + ... + 35996783.

It is an arithmetic number, because the mean of its divisors is an integer number (2699747625).

Almost surely, 2^10726997081 is an apocalyptic number.

It is an amenable number.

10726997081 is a deficient number, since it is larger than the sum of its proper divisors (71993419).

10726997081 is an equidigital number, since it uses as much as digits as its factorization.

10726997081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71993418.

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 10726997081 in words is "ten billion, seven hundred twenty-six million, nine hundred ninety-seven thousand, eighty-one".