19836479708011 has 4 divisors (see below), whose sum is σ = 20115866746224. Its totient is φ = 19557092669800.

The previous prime is 19836479708009. The next prime is 19836479708033. The reversal of 19836479708011 is 11080797463891.

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 19836479708011 - 2¹ = 19836479708009 is a prime.

It is a super-2 number, since 2×19836479708011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19836479708041) 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, 139693519000 + ... + 139693519141.

It is an arithmetic number, because the mean of its divisors is an integer number (5028966686556).

Almost surely, 2^{19836479708011} is an apocalyptic number.

19836479708011 is a deficient number, since it is larger than the sum of its proper divisors (279387038213).

19836479708011 is an equidigital number, since it uses as much as digits as its factorization.

19836479708011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279387038212.

The product of its (nonzero) digits is 18289152, while the sum is 64.

The spelling of 19836479708011 in words is "nineteen trillion, eight hundred thirty-six billion, four hundred seventy-nine million, seven hundred eight thousand, eleven".