2006428765 has 16 divisors (see below), whose sum is σ = 2627557056. Its totient is φ = 1458688000.

The previous prime is 2006428733. The next prime is 2006428769. The reversal of 2006428765 is 5678246002.

It is not a de Polignac number, because 2006428765 - 2⁵ = 2006428733 is a prime.

It is a super-3 number, since 3×2006428765³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006428769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207069 + ... + 216541.

It is an arithmetic number, because the mean of its divisors is an integer number (164222316).

Almost surely, 2^2006428765 is an apocalyptic number.

It is an amenable number.

2006428765 is a deficient number, since it is larger than the sum of its proper divisors (621128291).

2006428765 is a wasteful number, since it uses less digits than its factorization.

2006428765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2006428765 is about 44793.1776613359. The cubic root of 2006428765 is about 1261.2695621053.

The spelling of 2006428765 in words is "two billion, six million, four hundred twenty-eight thousand, seven hundred sixty-five".