10686981346 has 4 divisors (see below), whose sum is σ = 16030472022. Its totient is φ = 5343490672.

The previous prime is 10686981341. The next prime is 10686981353. The reversal of 10686981346 is 64318968601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64318968601 = 29 ⋅2217895469.

It can be written as a sum of positive squares in only one way, i.e., 9035453025 + 1651528321 = 95055^2 + 40639^2 .

It is a super-2 number, since 2×10686981346² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10686981293 and 10686981302.

It is not an unprimeable number, because it can be changed into a prime (10686981341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2671745335 + ... + 2671745338.

Almost surely, 2^10686981346 is an apocalyptic number.

10686981346 is a deficient number, since it is larger than the sum of its proper divisors (5343490676).

10686981346 is an equidigital number, since it uses as much as digits as its factorization.

10686981346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343490675.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 10686981346 in words is "ten billion, six hundred eighty-six million, nine hundred eighty-one thousand, three hundred forty-six".