2881866771000 has 384 divisors, whose sum is σ = 11284754083200. Its totient is φ = 649687910400.

The previous prime is 2881866770963. The next prime is 2881866771023. The reversal of 2881866771000 is 1776681882.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4285686 + ... + 4912314.

It is an arithmetic number, because the mean of its divisors is an integer number (29387380425).

Almost surely, 2^{2881866771000} is an apocalyptic number.

2881866771000 is a gapful number since it is divisible by the number (20) 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 2881866771000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5642377041600).

2881866771000 is an abundant number, since it is smaller than the sum of its proper divisors (8402887312200).

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

2881866771000 is a wasteful number, since it uses less digits than its factorization.

2881866771000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626736 (or 626719 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 2881866771000 in words is "two trillion, eight hundred eighty-one billion, eight hundred sixty-six million, seven hundred seventy-one thousand".