2574865680 has 80 divisors (see below), whose sum is σ = 8040449664. Its totient is φ = 681610240.

The previous prime is 2574865651. The next prime is 2574865697. The reversal of 2574865680 is 865684752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 6276 + ... + 72035.

Almost surely, 2^2574865680 is an apocalyptic number.

2574865680 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 2574865680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4020224832).

2574865680 is an abundant number, since it is smaller than the sum of its proper divisors (5465583984).

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

2574865680 is a wasteful number, since it uses less digits than its factorization.

2574865680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78464 (or 78458 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The square root of 2574865680 is about 50743.1343139148. The cubic root of 2574865680 is about 1370.6235604234.

The spelling of 2574865680 in words is "two billion, five hundred seventy-four million, eight hundred sixty-five thousand, six hundred eighty".