13928256579456 has 384 divisors, whose sum is σ = 41204619181440. Its totient is φ = 4514250424320.

The previous prime is 13928256579397. The next prime is 13928256579493. The reversal of 13928256579456 is 65497565282931.

13928256579456 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 8 + 2 + 5 + 6 + 579 + 45 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3259594536 + ... + 3259598808.

It is an arithmetic number, because the mean of its divisors is an integer number (107303695785).

Almost surely, 2^{13928256579456} is an apocalyptic number.

13928256579456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13928256579456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20602309590720).

13928256579456 is an abundant number, since it is smaller than the sum of its proper divisors (27276362601984).

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

13928256579456 is a wasteful number, since it uses less digits than its factorization.

13928256579456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814 (or 4799 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 72.

The spelling of 13928256579456 in words is "thirteen trillion, nine hundred twenty-eight billion, two hundred fifty-six million, five hundred seventy-nine thousand, four hundred fifty-six".