10130728691 has 4 divisors (see below), whose sum is σ = 10133881032. Its totient is φ = 10127576352.

The previous prime is 10130728687. The next prime is 10130728709. The reversal of 10130728691 is 19682703101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19682703101 = 2027 ⋅9710263.

It is a cyclic number.

It is not a de Polignac number, because 10130728691 - 2² = 10130728687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10133728691) 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, 1571345 + ... + 1577778.

It is an arithmetic number, because the mean of its divisors is an integer number (2533470258).

Almost surely, 2^10130728691 is an apocalyptic number.

10130728691 is a deficient number, since it is larger than the sum of its proper divisors (3152341).

10130728691 is an equidigital number, since it uses as much as digits as its factorization.

10130728691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152340.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 10130728691 in words is "ten billion, one hundred thirty million, seven hundred twenty-eight thousand, six hundred ninety-one".