28820848080 has 80 divisors (see below), whose sum is σ = 91759377024. Its totient is φ = 7477839360.

The previous prime is 28820848061. The next prime is 28820848081. The reversal of 28820848080 is 8084802882.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28820848081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613916 + ... + 1631675.

Almost surely, 2^28820848080 is an apocalyptic number.

28820848080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28820848080 is an abundant number, since it is smaller than the sum of its proper divisors (62938528944).

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

28820848080 is a wasteful number, since it uses less digits than its factorization.

28820848080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245644 (or 3245638 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 48.

The spelling of 28820848080 in words is "twenty-eight billion, eight hundred twenty million, eight hundred forty-eight thousand, eighty".