28057177852176 has 320 divisors, whose sum is σ = 84018478473216. Its totient is φ = 7989420441600.

The previous prime is 28057177852163. The next prime is 28057177852241. The reversal of 28057177852176 is 67125877175082.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83981175 + ... + 84314601.

Almost surely, 2^{28057177852176} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28057177852176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42009239236608).

28057177852176 is an abundant number, since it is smaller than the sum of its proper divisors (55961300621040).

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

28057177852176 is a wasteful number, since it uses less digits than its factorization.

28057177852176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333630 (or 333624 counting only the distinct ones).

The product of its (nonzero) digits is 92198400, while the sum is 66.

The spelling of 28057177852176 in words is "twenty-eight trillion, fifty-seven billion, one hundred seventy-seven million, eight hundred fifty-two thousand, one hundred seventy-six".