13864286420 has 24 divisors (see below), whose sum is σ = 30827649384. Its totient is φ = 5219495936.

The previous prime is 13864286413. The next prime is 13864286441. The reversal of 13864286420 is 2468246831.

It can be written as a sum of positive squares in 4 ways, for example, as 2199422404 + 11664864016 = 46898^2 + 108004^2 .

It is a super-3 number, since 3×13864286420³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20388317 + ... + 20388996.

It is an arithmetic number, because the mean of its divisors is an integer number (1284485391).

Almost surely, 2^13864286420 is an apocalyptic number.

13864286420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13864286420 is an abundant number, since it is smaller than the sum of its proper divisors (16963362964).

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

13864286420 is a wasteful number, since it uses less digits than its factorization.

13864286420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40777339 (or 40777337 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 13864286420 in words is "thirteen billion, eight hundred sixty-four million, two hundred eighty-six thousand, four hundred twenty".