2581412490 has 80 divisors (see below), whose sum is σ = 7088919552. Its totient is φ = 673720416.

The previous prime is 2581412489. The next prime is 2581412513. The reversal of 2581412490 is 942141852.

2581412490 is a `hidden beast` number, since 25 + 8 + 141 + 2 + 490 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4167 + ... + 71973.

Almost surely, 2^2581412490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2581412490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544459776).

2581412490 is an abundant number, since it is smaller than the sum of its proper divisors (4507507062).

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

2581412490 is a wasteful number, since it uses less digits than its factorization.

2581412490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67873 (or 67864 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2581412490 is about 50807.6026791267. The cubic root of 2581412490 is about 1371.7842187288.

The spelling of 2581412490 in words is "two billion, five hundred eighty-one million, four hundred twelve thousand, four hundred ninety".