2805757142 has 16 divisors (see below), whose sum is σ = 4314377520. Its totient is φ = 1367956512.

The previous prime is 2805757109. The next prime is 2805757169. The reversal of 2805757142 is 2417575082.

It is a self number, because there is not a number n which added to its sum of digits gives 2805757142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63917 + ... + 98472.

It is an arithmetic number, because the mean of its divisors is an integer number (269648595).

Almost surely, 2^2805757142 is an apocalyptic number.

2805757142 is a deficient number, since it is larger than the sum of its proper divisors (1508620378).

2805757142 is a wasteful number, since it uses less digits than its factorization.

2805757142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162607.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 2805757142 is about 52969.3981653558. The cubic root of 2805757142 is about 1410.4250922234.

The spelling of 2805757142 in words is "two billion, eight hundred five million, seven hundred fifty-seven thousand, one hundred forty-two".