2609312385 has 16 divisors (see below), whose sum is σ = 4176429696. Its totient is φ = 1391123328.

The previous prime is 2609312383. The next prime is 2609312399. The reversal of 2609312385 is 5832139062.

It is not a de Polignac number, because 2609312385 - 2¹ = 2609312383 is a prime.

It is a super-2 number, since 2×2609312385² = 13617022245028776450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2609312383) 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, 12412 + ... + 73298.

It is an arithmetic number, because the mean of its divisors is an integer number (261026856).

Almost surely, 2^2609312385 is an apocalyptic number.

It is an amenable number.

2609312385 is a deficient number, since it is larger than the sum of its proper divisors (1567117311).

2609312385 is a wasteful number, since it uses less digits than its factorization.

2609312385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63752.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2609312385 is about 51081.4289639591. The cubic root of 2609312385 is about 1376.7085995105.

The spelling of 2609312385 in words is "two billion, six hundred nine million, three hundred twelve thousand, three hundred eighty-five".