13819698485 has 4 divisors (see below), whose sum is σ = 16583638188. Its totient is φ = 11055758784.

The previous prime is 13819698437. The next prime is 13819698499. The reversal of 13819698485 is 58489691831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3313038481 + 10506660004 = 57559^2 + 102502^2 .

It is a cyclic number.

It is not a de Polignac number, because 13819698485 - 2¹² = 13819694389 is a prime.

It is a super-2 number, since 2×13819698485² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381969844 + ... + 1381969853.

It is an arithmetic number, because the mean of its divisors is an integer number (4145909547).

Almost surely, 2^13819698485 is an apocalyptic number.

It is an amenable number.

13819698485 is a deficient number, since it is larger than the sum of its proper divisors (2763939703).

13819698485 is an equidigital number, since it uses as much as digits as its factorization.

13819698485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763939702.

The product of its digits is 14929920, while the sum is 62.

The spelling of 13819698485 in words is "thirteen billion, eight hundred nineteen million, six hundred ninety-eight thousand, four hundred eighty-five".