2805979161 has 8 divisors (see below), whose sum is σ = 3747681504. Its totient is φ = 1867464800.

The previous prime is 2805979103. The next prime is 2805979193. The reversal of 2805979161 is 1619795082.

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 2805979161 - 2⁶ = 2805979097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2805979161.

It is not an unprimeable number, because it can be changed into a prime (2805979661) 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, 794940 + ... + 798461.

It is an arithmetic number, because the mean of its divisors is an integer number (468460188).

Almost surely, 2^2805979161 is an apocalyptic number.

It is an amenable number.

2805979161 is a deficient number, since it is larger than the sum of its proper divisors (941702343).

2805979161 is a wasteful number, since it uses less digits than its factorization.

2805979161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593991.

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 2805979161 is about 52971.4938528262. The cubic root of 2805979161 is about 1410.4622934604.

The spelling of 2805979161 in words is "two billion, eight hundred five million, nine hundred seventy-nine thousand, one hundred sixty-one".