28570739299840 has 320 divisors, whose sum is σ = 73051713212544. Its totient is φ = 10679207067648.

The previous prime is 28570739299771. The next prime is 28570739299859. The reversal of 28570739299840 is 4899293707582.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6602895757 + ... + 6602900083.

Almost surely, 2^{28570739299840} is an apocalyptic number.

28570739299840 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 28570739299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36525856606272).

28570739299840 is an abundant number, since it is smaller than the sum of its proper divisors (44480973912704).

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

28570739299840 is a wasteful number, since it uses less digits than its factorization.

28570739299840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 5401 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 73.

The spelling of 28570739299840 in words is "twenty-eight trillion, five hundred seventy billion, seven hundred thirty-nine million, two hundred ninety-nine thousand, eight hundred forty".