28747060920 has 64 divisors (see below), whose sum is σ = 95823540000. Its totient is φ = 7665882624.

The previous prime is 28747060879. The next prime is 28747060967. The reversal of 28747060920 is 2906074782.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13307745 + ... + 13309904.

Almost surely, 2^28747060920 is an apocalyptic number.

28747060920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28747060920 is an abundant number, since it is smaller than the sum of its proper divisors (67076479080).

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

28747060920 is a wasteful number, since it uses less digits than its factorization.

28747060920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26617669 (or 26617659 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 28747060920 in words is "twenty-eight billion, seven hundred forty-seven million, sixty thousand, nine hundred twenty".