2005746563 has 8 divisors (see below), whose sum is σ = 2031948480. Its totient is φ = 1979565120.

The previous prime is 2005746559. The next prime is 2005746569. The reversal of 2005746563 is 3656475002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2005746563 - 2² = 2005746559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005746569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347981 + ... + 353697.

It is an arithmetic number, because the mean of its divisors is an integer number (253993560).

Almost surely, 2^2005746563 is an apocalyptic number.

2005746563 is a deficient number, since it is larger than the sum of its proper divisors (26201917).

2005746563 is an equidigital number, since it uses as much as digits as its factorization.

2005746563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10237.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 2005746563 is about 44785.5619926780. The cubic root of 2005746563 is about 1261.1265986188.

The spelling of 2005746563 in words is "two billion, five million, seven hundred forty-six thousand, five hundred sixty-three".