2587081854 has 64 divisors (see below), whose sum is σ = 6014246400. Its totient is φ = 726599808.

The previous prime is 2587081759. The next prime is 2587081877. The reversal of 2587081854 is 4581807852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2332252 + ... + 2333360.

It is an arithmetic number, because the mean of its divisors is an integer number (93972600).

Almost surely, 2^2587081854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2587081854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007123200).

2587081854 is an abundant number, since it is smaller than the sum of its proper divisors (3427164546).

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

2587081854 is a wasteful number, since it uses less digits than its factorization.

2587081854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017.

The product of its (nonzero) digits is 716800, while the sum is 48.

The square root of 2587081854 is about 50863.3645564271. The cubic root of 2587081854 is about 1372.7877336104.

The spelling of 2587081854 in words is "two billion, five hundred eighty-seven million, eighty-one thousand, eight hundred fifty-four".