28570647340 has 24 divisors (see below), whose sum is σ = 61015283280. Its totient is φ = 11234559168.

The previous prime is 28570647323. The next prime is 28570647341. The reversal of 28570647340 is 4374607582.

It is not an unprimeable number, because it can be changed into a prime (28570647341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12105027 + ... + 12107386.

It is an arithmetic number, because the mean of its divisors is an integer number (2542303470).

Almost surely, 2^28570647340 is an apocalyptic number.

28570647340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28570647340 is an abundant number, since it is smaller than the sum of its proper divisors (32444635940).

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

28570647340 is a wasteful number, since it uses less digits than its factorization.

28570647340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212481 (or 24212479 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 28570647340 in words is "twenty-eight billion, five hundred seventy million, six hundred forty-seven thousand, three hundred forty".