2878527328640 has 128 divisors (see below), whose sum is σ = 6931970388000. Its totient is φ = 1142972448768.

The previous prime is 2878527328639. The next prime is 2878527328667. The reversal of 2878527328640 is 468237258782.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169446227 + ... + 169463213.

Almost surely, 2^{2878527328640} is an apocalyptic number.

2878527328640 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 2878527328640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465985194000).

2878527328640 is an abundant number, since it is smaller than the sum of its proper divisors (4053443059360).

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

2878527328640 is a wasteful number, since it uses less digits than its factorization.

2878527328640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18932 (or 18920 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 62.

The spelling of 2878527328640 in words is "two trillion, eight hundred seventy-eight billion, five hundred twenty-seven million, three hundred twenty-eight thousand, six hundred forty".