2788399896576 has 384 divisors, whose sum is σ = 9386837591040. Its totient is φ = 717216546816.

The previous prime is 2788399896473. The next prime is 2788399896577. The reversal of 2788399896576 is 6756989938872.

It is a tau number, because it is divible by the number of its divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 2788399896492 and 2788399896501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788399896577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16733220 + ... + 16899036.

It is an arithmetic number, because the mean of its divisors is an integer number (24444889560).

Almost surely, 2^{2788399896576} 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 2788399896576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4693418795520).

2788399896576 is an abundant number, since it is smaller than the sum of its proper divisors (6598437694464).

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

2788399896576 is a wasteful number, since it uses less digits than its factorization.

2788399896576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165889 (or 165869 counting only the distinct ones).

The product of its digits is 19752284160, while the sum is 87.

The spelling of 2788399896576 in words is "two trillion, seven hundred eighty-eight billion, three hundred ninety-nine million, eight hundred ninety-six thousand, five hundred seventy-six".