28461448560 has 40 divisors (see below), whose sum is σ = 88230491280. Its totient is φ = 7589719552.

The previous prime is 28461448553. The next prime is 28461448607. The reversal of 28461448560 is 6584416482.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59294445 + ... + 59294924.

It is an arithmetic number, because the mean of its divisors is an integer number (2205762282).

Almost surely, 2^28461448560 is an apocalyptic number.

28461448560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28461448560 is an abundant number, since it is smaller than the sum of its proper divisors (59769042720).

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

28461448560 is a wasteful number, since it uses less digits than its factorization.

28461448560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118589385 (or 118589379 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 28461448560 in words is "twenty-eight billion, four hundred sixty-one million, four hundred forty-eight thousand, five hundred sixty".