10391819265799 has 4 divisors (see below), whose sum is σ = 10391946624864. Its totient is φ = 10391691906736.

The previous prime is 10391819265797. The next prime is 10391819265823. The reversal of 10391819265799 is 99756291819301.

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

It is a cyclic number.

It is not a de Polignac number, because 10391819265799 - 2¹ = 10391819265797 is a prime.

It is a super-2 number, since 2×10391819265799² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10391819265797) 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, 63557062 + ... + 63720355.

It is an arithmetic number, because the mean of its divisors is an integer number (2597986656216).

Almost surely, 2^{10391819265799} is an apocalyptic number.

10391819265799 is a deficient number, since it is larger than the sum of its proper divisors (127359065).

10391819265799 is an equidigital number, since it uses as much as digits as its factorization.

10391819265799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127359064.

The product of its (nonzero) digits is 66134880, while the sum is 70.

The spelling of 10391819265799 in words is "ten trillion, three hundred ninety-one billion, eight hundred nineteen million, two hundred sixty-five thousand, seven hundred ninety-nine".