2001779265 has 8 divisors (see below), whose sum is σ = 3202846848. Its totient is φ = 1067615600.

The previous prime is 2001779249. The next prime is 2001779267. The reversal of 2001779265 is 5629771002.

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

It is not a de Polignac number, because 2001779265 - 2⁴ = 2001779249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001779267) 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, 66725961 + ... + 66725990.

It is an arithmetic number, because the mean of its divisors is an integer number (400355856).

Almost surely, 2^2001779265 is an apocalyptic number.

It is an amenable number.

2001779265 is a deficient number, since it is larger than the sum of its proper divisors (1201067583).

2001779265 is a wasteful number, since it uses less digits than its factorization.

2001779265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133451959.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 2001779265 is about 44741.2479150951. The cubic root of 2001779265 is about 1260.2945613919.

The spelling of 2001779265 in words is "two billion, one million, seven hundred seventy-nine thousand, two hundred sixty-five".