10931019661691 has 8 divisors (see below), whose sum is σ = 11197676422800. Its totient is φ = 10664365116160.

The previous prime is 10931019661619. The next prime is 10931019661817. The reversal of 10931019661691 is 19616691013901.

It is a happy number.

10931019661691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10931019661691 - 2¹⁰ = 10931019660667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10931019661391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14114675 + ... + 14868963.

It is an arithmetic number, because the mean of its divisors is an integer number (1399709552850).

Almost surely, 2^{10931019661691} is an apocalyptic number.

10931019661691 is a deficient number, since it is larger than the sum of its proper divisors (266656761109).

10931019661691 is an equidigital number, since it uses as much as digits as its factorization.

10931019661691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107789.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 10931019661691 in words is "ten trillion, nine hundred thirty-one billion, nineteen million, six hundred sixty-one thousand, six hundred ninety-one".