2581384116 has 24 divisors (see below), whose sum is σ = 6285109824. Its totient is φ = 823049920.

The previous prime is 2581384111. The next prime is 2581384121. The reversal of 2581384116 is 6114831852.

It is an interprime number because it is at equal distance from previous prime (2581384111) and next prime (2581384121).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581384111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4676145 + ... + 4676696.

It is an arithmetic number, because the mean of its divisors is an integer number (261879576).

Almost surely, 2^2581384116 is an apocalyptic number.

It is an amenable number.

2581384116 is an abundant number, since it is smaller than the sum of its proper divisors (3703725708).

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

2581384116 is a wasteful number, since it uses less digits than its factorization.

2581384116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9352871 (or 9352869 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 2581384116 is about 50807.3234484951. The cubic root of 2581384116 is about 1371.7791926499.

The spelling of 2581384116 in words is "two billion, five hundred eighty-one million, three hundred eighty-four thousand, one hundred sixteen".