10116439691 has 4 divisors (see below), whose sum is σ = 10116971592. Its totient is φ = 10115907792.

The previous prime is 10116439681. The next prime is 10116439709. The reversal of 10116439691 is 19693461101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10116439691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10116439601) 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, 236321 + ... + 275826.

It is an arithmetic number, because the mean of its divisors is an integer number (2529242898).

Almost surely, 2^10116439691 is an apocalyptic number.

10116439691 is a deficient number, since it is larger than the sum of its proper divisors (531901).

10116439691 is an equidigital number, since it uses as much as digits as its factorization.

10116439691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531900.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 10116439691 in words is "ten billion, one hundred sixteen million, four hundred thirty-nine thousand, six hundred ninety-one".