13874858420 has 18 divisors (see below), whose sum is σ = 29138308962. Its totient is φ = 5549732656.

The previous prime is 13874858377. The next prime is 13874858429. The reversal of 13874858420 is 2485847831.

It can be written as a sum of positive squares in only one way, i.e., 11099886736 + 2774971684 = 105356^2 + 52678^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13874858429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513611 + ... + 539949.

Almost surely, 2^13874858420 is an apocalyptic number.

13874858420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13874858420 is an abundant number, since it is smaller than the sum of its proper divisors (15263450542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13874858420 is an frugal number, since it uses more digits than its factorization.

13874858420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52687 (or 26346 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 13874858420 in words is "thirteen billion, eight hundred seventy-four million, eight hundred fifty-eight thousand, four hundred twenty".