28571717314460 has 24 divisors (see below), whose sum is σ = 60228745559136. Its totient is φ = 11385231840320.

The previous prime is 28571717314453. The next prime is 28571717314487. The reversal of 28571717314460 is 6441371717582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28571717314396 and 28571717314405.

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, 2715937451 + ... + 2715947970.

It is an arithmetic number, because the mean of its divisors is an integer number (2509531064964).

Almost surely, 2^{28571717314460} is an apocalyptic number.

28571717314460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28571717314460 is an abundant number, since it is smaller than the sum of its proper divisors (31657028244676).

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

28571717314460 is a wasteful number, since it uses less digits than its factorization.

28571717314460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431885693 (or 5431885691 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 28571717314460 in words is "twenty-eight trillion, five hundred seventy-one billion, seven hundred seventeen million, three hundred fourteen thousand, four hundred sixty".