2578784682 has 16 divisors (see below), whose sum is σ = 5165750592. Its totient is φ = 858231360.

The previous prime is 2578784651. The next prime is 2578784707. The reversal of 2578784682 is 2864878752.

It is a super-2 number, since 2×2578784682² = 13300260872235682248, which contains 22 as substring.

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, 336783 + ... + 344354.

It is an arithmetic number, because the mean of its divisors is an integer number (322859412).

Almost surely, 2^2578784682 is an apocalyptic number.

2578784682 is an abundant number, since it is smaller than the sum of its proper divisors (2586965910).

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

2578784682 is a wasteful number, since it uses less digits than its factorization.

2578784682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681773.

The product of its digits is 12042240, while the sum is 57.

The square root of 2578784682 is about 50781.7357127540. The cubic root of 2578784682 is about 1371.3185809637.

The spelling of 2578784682 in words is "two billion, five hundred seventy-eight million, seven hundred eighty-four thousand, six hundred eighty-two".