28458647700 has 144 divisors (see below), whose sum is σ = 99638872704. Its totient is φ = 6122188800.

The previous prime is 28458647677. The next prime is 28458647729. The reversal of 28458647700 is 774685482.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 362881 + ... + 434280.

It is an arithmetic number, because the mean of its divisors is an integer number (691936616).

Almost surely, 2^28458647700 is an apocalyptic number.

28458647700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28458647700 is an abundant number, since it is smaller than the sum of its proper divisors (71180225004).

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

28458647700 is a wasteful number, since it uses less digits than its factorization.

28458647700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797202 (or 797195 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 28458647700 in words is "twenty-eight billion, four hundred fifty-eight million, six hundred forty-seven thousand, seven hundred".