2578648068 has 48 divisors (see below), whose sum is σ = 6700599360. Its totient is φ = 857593152.

The previous prime is 2578648049. The next prime is 2578648073. The reversal of 2578648068 is 8608468752.

2578648068 is a `hidden beast` number, since 2 + 578 + 6 + 4 + 8 + 0 + 68 = 666.

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

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, 20896 + ... + 74792.

It is an arithmetic number, because the mean of its divisors is an integer number (139595820).

Almost surely, 2^2578648068 is an apocalyptic number.

It is an amenable number.

2578648068 is an abundant number, since it is smaller than the sum of its proper divisors (4121951292).

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

2578648068 is a wasteful number, since it uses less digits than its factorization.

2578648068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54353 (or 54345 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The square root of 2578648068 is about 50780.3905853431. The cubic root of 2578648068 is about 1371.2943648247.

The spelling of 2578648068 in words is "two billion, five hundred seventy-eight million, six hundred forty-eight thousand, sixty-eight".