10091798679 has 4 divisors (see below), whose sum is σ = 13455731576. Its totient is φ = 6727865784.

The previous prime is 10091798677. The next prime is 10091798767. The reversal of 10091798679 is 97689719001.

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

It is not a de Polignac number, because 10091798679 - 2¹ = 10091798677 is a prime.

It is a super-2 number, since 2×10091798679² (a number of 21 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 (10091798677) 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, 1681966444 + ... + 1681966449.

It is an arithmetic number, because the mean of its divisors is an integer number (3363932894).

Almost surely, 2^10091798679 is an apocalyptic number.

10091798679 is a deficient number, since it is larger than the sum of its proper divisors (3363932897).

10091798679 is an equidigital number, since it uses as much as digits as its factorization.

10091798679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363932896.

The product of its (nonzero) digits is 1714608, while the sum is 57.

The spelling of 10091798679 in words is "ten billion, ninety-one million, seven hundred ninety-eight thousand, six hundred seventy-nine".