28571937837968 has 160 divisors (see below), whose sum is σ = 67635983400960. Its totient is φ = 11428494819840.

The previous prime is 28571937837929. The next prime is 28571937837977. The reversal of 28571937837968 is 86973873917582.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88746821 + ... + 89068187.

It is an arithmetic number, because the mean of its divisors is an integer number (422724896256).

Almost surely, 2^{28571937837968} is an apocalyptic number.

28571937837968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28571937837968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33817991700480).

28571937837968 is an abundant number, since it is smaller than the sum of its proper divisors (39064045562992).

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

28571937837968 is a wasteful number, since it uses less digits than its factorization.

28571937837968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322325 (or 322319 counting only the distinct ones).

The product of its digits is 7681443840, while the sum is 83.

The spelling of 28571937837968 in words is "twenty-eight trillion, five hundred seventy-one billion, nine hundred thirty-seven million, eight hundred thirty-seven thousand, nine hundred sixty-eight".