2851720409088 has 312 divisors, whose sum is σ = 8318196400800. Its totient is φ = 941288325120.

The previous prime is 2851720409081. The next prime is 2851720409089. The reversal of 2851720409088 is 8809040271582.

2851720409088 is a `hidden beast` number, since 2 + 8 + 517 + 2 + 0 + 40 + 9 + 0 + 88 = 666.

It is not an unprimeable number, because it can be changed into a prime (2851720409081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1767959770 + ... + 1767961382.

It is an arithmetic number, because the mean of its divisors is an integer number (26660885900).

Almost surely, 2^{2851720409088} 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 2851720409088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4159098200400).

2851720409088 is an abundant number, since it is smaller than the sum of its proper divisors (5466475991712).

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

2851720409088 is a wasteful number, since it uses less digits than its factorization.

2851720409088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2058 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 2851720409088 in words is "two trillion, eight hundred fifty-one billion, seven hundred twenty million, four hundred nine thousand, eighty-eight".