2809653379 has 8 divisors (see below), whose sum is σ = 3027728592. Its totient is φ = 2591856480.

The previous prime is 2809653361. The next prime is 2809653397. The reversal of 2809653379 is 9733569082.

It is an interprime number because it is at equal distance from previous prime (2809653361) and next prime (2809653397).

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 2809653379 - 2⁵ = 2809653347 is a prime.

It is a super-2 number, since 2×2809653379² = 15788304220252235282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2809653479) 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, 48364 + ... + 89209.

It is an arithmetic number, because the mean of its divisors is an integer number (378466074).

Almost surely, 2^2809653379 is an apocalyptic number.

2809653379 is a deficient number, since it is larger than the sum of its proper divisors (218075213).

2809653379 is a wasteful number, since it uses less digits than its factorization.

2809653379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139157.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The square root of 2809653379 is about 53006.1635944349. The cubic root of 2809653379 is about 1411.0776562660.

The spelling of 2809653379 in words is "two billion, eight hundred nine million, six hundred fifty-three thousand, three hundred seventy-nine".