2878656624 has 40 divisors (see below), whose sum is σ = 8262811920. Its totient is φ = 959552064.

The previous prime is 2878656593. The next prime is 2878656661. The reversal of 2878656624 is 4266568782.

2878656624 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 6 + 5 + 6 + 624 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3331347 + ... + 3332210.

It is an arithmetic number, because the mean of its divisors is an integer number (206570298).

Almost surely, 2^2878656624 is an apocalyptic number.

2878656624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2878656624 is an abundant number, since it is smaller than the sum of its proper divisors (5384155296).

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

2878656624 is a wasteful number, since it uses less digits than its factorization.

2878656624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663574 (or 6663562 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 2878656624 is about 53653.1138332157. The cubic root of 2878656624 is about 1422.5360723409.

The spelling of 2878656624 in words is "two billion, eight hundred seventy-eight million, six hundred fifty-six thousand, six hundred twenty-four".