2587481694 has 96 divisors (see below), whose sum is σ = 6563321856. Its totient is φ = 721353600.

The previous prime is 2587481683. The next prime is 2587481717. The reversal of 2587481694 is 4961847852.

It is a happy number.

2587481694 is a `hidden beast` number, since 2 + 587 + 48 + 16 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2587481694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3558759 + ... + 3559485.

It is an arithmetic number, because the mean of its divisors is an integer number (68367936).

Almost surely, 2^2587481694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2587481694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281660928).

2587481694 is an abundant number, since it is smaller than the sum of its proper divisors (3975840162).

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

2587481694 is a wasteful number, since it uses less digits than its factorization.

2587481694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1387 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 2587481694 is about 50867.2949349580. The cubic root of 2587481694 is about 1372.8584525649.

The spelling of 2587481694 in words is "two billion, five hundred eighty-seven million, four hundred eighty-one thousand, six hundred ninety-four".