2878209880 has 256 divisors, whose sum is σ = 8592998400. Its totient is φ = 842434560.

The previous prime is 2878209877. The next prime is 2878209913. The reversal of 2878209880 is 889028782.

It is a super-2 number, since 2×2878209880² = 16568184226659228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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, 2594766 + ... + 2595874.

It is an arithmetic number, because the mean of its divisors is an integer number (33566400).

Almost surely, 2^2878209880 is an apocalyptic number.

2878209880 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 2878209880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4296499200).

2878209880 is an abundant number, since it is smaller than the sum of its proper divisors (5714788520).

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

2878209880 is a wasteful number, since it uses less digits than its factorization.

2878209880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 2878209880 is about 53648.9504091180. The cubic root of 2878209880 is about 1422.4624798733.

The spelling of 2878209880 in words is "two billion, eight hundred seventy-eight million, two hundred nine thousand, eight hundred eighty".