28730957080 has 32 divisors (see below), whose sum is σ = 73879604640. Its totient is φ = 9850613760.

The previous prime is 28730957071. The next prime is 28730957113. The reversal of 28730957080 is 8075903782.

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 7 ways as a sum of consecutive naturals, for example, 51305001 + ... + 51305560.

It is an arithmetic number, because the mean of its divisors is an integer number (2308737645).

Almost surely, 2^28730957080 is an apocalyptic number.

28730957080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28730957080 is an abundant number, since it is smaller than the sum of its proper divisors (45148647560).

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

28730957080 is a wasteful number, since it uses less digits than its factorization.

28730957080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102610579 (or 102610575 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 28730957080 in words is "twenty-eight billion, seven hundred thirty million, nine hundred fifty-seven thousand, eighty".