28017642480 has 80 divisors (see below), whose sum is σ = 87185134080. Its totient is φ = 7442946304.

The previous prime is 28017642469. The next prime is 28017642503. The reversal of 28017642480 is 8424671082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158820 + ... + 285059.

It is an arithmetic number, because the mean of its divisors is an integer number (1089814176).

Almost surely, 2^28017642480 is an apocalyptic number.

28017642480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28017642480 is an abundant number, since it is smaller than the sum of its proper divisors (59167491600).

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

28017642480 is a wasteful number, since it uses less digits than its factorization.

28017642480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444158 (or 444152 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 28017642480 in words is "twenty-eight billion, seventeen million, six hundred forty-two thousand, four hundred eighty".