2587281612 has 48 divisors (see below), whose sum is σ = 6404922720. Its totient is φ = 810068992.

The previous prime is 2587281563. The next prime is 2587281637. The reversal of 2587281612 is 2161827852.

It is a super-2 number, since 2×2587281612² = 13388052279586637088, which contains 22 as substring.

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, 91378 + ... + 116294.

It is an arithmetic number, because the mean of its divisors is an integer number (133435890).

Almost surely, 2^2587281612 is an apocalyptic number.

It is an amenable number.

2587281612 is an abundant number, since it is smaller than the sum of its proper divisors (3817641108).

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

2587281612 is a wasteful number, since it uses less digits than its factorization.

2587281612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25450 (or 25448 counting only the distinct ones).

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

The square root of 2587281612 is about 50865.3281912149. The cubic root of 2587281612 is about 1372.8230653458.

The spelling of 2587281612 in words is "two billion, five hundred eighty-seven million, two hundred eighty-one thousand, six hundred twelve".