2006865231 has 16 divisors (see below), whose sum is σ = 3066077184. Its totient is φ = 1143781344.

The previous prime is 2006865227. The next prime is 2006865239. The reversal of 2006865231 is 1325686002.

It is not a de Polignac number, because 2006865231 - 2² = 2006865227 is a prime.

It is a super-2 number, since 2×2006865231² = 8055016110793366722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2006865192 and 2006865201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006865239) 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, 116716 + ... + 132801.

It is an arithmetic number, because the mean of its divisors is an integer number (191629824).

Almost surely, 2^2006865231 is an apocalyptic number.

2006865231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2006865231 is a deficient number, since it is larger than the sum of its proper divisors (1059211953).

2006865231 is a wasteful number, since it uses less digits than its factorization.

2006865231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249910.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2006865231 is about 44798.0494106607. The cubic root of 2006865231 is about 1261.3610117127.

The spelling of 2006865231 in words is "two billion, six million, eight hundred sixty-five thousand, two hundred thirty-one".