2587851772 has 48 divisors (see below), whose sum is σ = 5219665920. Its totient is φ = 1111544000.

The previous prime is 2587851769. The next prime is 2587851781. The reversal of 2587851772 is 2771587852.

It is a congruent number.

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, 38397 + ... + 81547.

It is an arithmetic number, because the mean of its divisors is an integer number (108743040).

Almost surely, 2^2587851772 is an apocalyptic number.

2587851772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2587851772 is an abundant number, since it is smaller than the sum of its proper divisors (2631814148).

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

2587851772 is a wasteful number, since it uses less digits than its factorization.

2587851772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43242 (or 43240 counting only the distinct ones).

The product of its digits is 2195200, while the sum is 52.

The square root of 2587851772 is about 50870.9324860475. The cubic root of 2587851772 is about 1372.9239010782.

The spelling of 2587851772 in words is "two billion, five hundred eighty-seven million, eight hundred fifty-one thousand, seven hundred seventy-two".