5629781285 has 16 divisors (see below), whose sum is σ = 7158294000. Its totient is φ = 4235836416.

The previous prime is 5629781273. The next prime is 5629781303. The reversal of 5629781285 is 5821879265.

It can be written as a sum of positive squares in 8 ways, for example, as 681784321 + 4947996964 = 26111^2 + 70342^2 .

It is not a de Polignac number, because 5629781285 - 2¹² = 5629777189 is a prime.

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, 98291 + ... + 144639.

It is an arithmetic number, because the mean of its divisors is an integer number (447393375).

Almost surely, 2^5629781285 is an apocalyptic number.

It is an amenable number.

5629781285 is a deficient number, since it is larger than the sum of its proper divisors (1528512715).

5629781285 is a wasteful number, since it uses less digits than its factorization.

5629781285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47800.

The product of its digits is 2419200, while the sum is 53.

The square root of 5629781285 is about 75031.8684626739. The cubic root of 5629781285 is about 1778.9504064473.

The spelling of 5629781285 in words is "five billion, six hundred twenty-nine million, seven hundred eighty-one thousand, two hundred eighty-five".