2878322500 has 135 divisors (see below), whose sum is σ = 6699792099. Its totient is φ = 1081584000.

The previous prime is 2878322477. The next prime is 2878322501. The reversal of 2878322500 is 52238782.

The square root of 2878322500 is 53650.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 2769495876 + 108826624 = 52626^2 + 10432^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2878322500.

It is not an unprimeable number, because it can be changed into a prime (2878322501) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 77792482 + ... + 77792518.

Almost surely, 2^2878322500 is an apocalyptic number.

2878322500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2878322500 is the 53650-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878322500

2878322500 is an abundant number, since it is smaller than the sum of its proper divisors (3821469599).

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

2878322500 is an equidigital number, since it uses as much as digits as its factorization.

2878322500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The cubic root of 2878322500 is about 1422.4810325666.

The spelling of 2878322500 in words is "two billion, eight hundred seventy-eight million, three hundred twenty-two thousand, five hundred".