28601571443172 has 96 divisors (see below), whose sum is σ = 84141208429824. Its totient is φ = 7359289344000.

The previous prime is 28601571443171. The next prime is 28601571443197. The reversal of 28601571443172 is 27134417510682.

It is not an unprimeable number, because it can be changed into a prime (28601571443171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319368829 + ... + 319458372.

It is an arithmetic number, because the mean of its divisors is an integer number (876470921144).

Almost surely, 2^{28601571443172} is an apocalyptic number.

It is an amenable number.

28601571443172 is an abundant number, since it is smaller than the sum of its proper divisors (55539636986652).

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

28601571443172 is a wasteful number, since it uses less digits than its factorization.

28601571443172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638827269 (or 638827267 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 28601571443172 in words is "twenty-eight trillion, six hundred one billion, five hundred seventy-one million, four hundred forty-three thousand, one hundred seventy-two".