13857160428 has 288 divisors, whose sum is σ = 40435584000. Its totient is φ = 4094779392.

The previous prime is 13857160381. The next prime is 13857160433. The reversal of 13857160428 is 82406175831.

13857160428 is a `hidden beast` number, since 1 + 38 + 5 + 7 + 1 + 604 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69633873 + ... + 69634071.

Almost surely, 2^13857160428 is an apocalyptic number.

13857160428 is a gapful number since it is divisible by the number (18) 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 13857160428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20217792000).

13857160428 is an abundant number, since it is smaller than the sum of its proper divisors (26578423572).

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

13857160428 is a wasteful number, since it uses less digits than its factorization.

13857160428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 13857160428 in words is "thirteen billion, eight hundred fifty-seven million, one hundred sixty thousand, four hundred twenty-eight".