28570785154560 has 960 divisors, whose sum is σ = 110687785528320. Its totient is φ = 6808425676800.

The previous prime is 28570785154517. The next prime is 28570785154567. The reversal of 28570785154560 is 6545158707582.

It is a happy number.

28570785154560 is a `hidden beast` number, since 2 + 8 + 5 + 7 + 0 + 7 + 85 + 1 + 545 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28570785154567) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1809300265 + ... + 1809316055.

It is an arithmetic number, because the mean of its divisors is an integer number (115299776592).

Almost surely, 2^{28570785154560} is an apocalyptic number.

28570785154560 is a gapful number since it is divisible by the number (20) 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 28570785154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55343892764160).

28570785154560 is an abundant number, since it is smaller than the sum of its proper divisors (82117000373760).

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

28570785154560 is a wasteful number, since it uses less digits than its factorization.

28570785154560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912 (or 15871 counting only the distinct ones).

The product of its (nonzero) digits is 94080000, while the sum is 63.

The spelling of 28570785154560 in words is "twenty-eight trillion, five hundred seventy billion, seven hundred eighty-five million, one hundred fifty-four thousand, five hundred sixty".