2581487016 has 16 divisors (see below), whose sum is σ = 6453717600. Its totient is φ = 860495664.

The previous prime is 2581486993. The next prime is 2581487017. The reversal of 2581487016 is 6107841852.

It is not an unprimeable number, because it can be changed into a prime (2581487017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53780956 + ... + 53781003.

It is an arithmetic number, because the mean of its divisors is an integer number (403357350).

Almost surely, 2^2581487016 is an apocalyptic number.

It is an amenable number.

2581487016 is an abundant number, since it is smaller than the sum of its proper divisors (3872230584).

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

2581487016 is a wasteful number, since it uses less digits than its factorization.

2581487016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107561968 (or 107561964 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 2581487016 is about 50808.3360876933. The cubic root of 2581487016 is about 1371.7974198486.

The spelling of 2581487016 in words is "two billion, five hundred eighty-one million, four hundred eighty-seven thousand, sixteen".