2761436161 has 4 divisors (see below), whose sum is σ = 3012475824. Its totient is φ = 2510396500.

The previous prime is 2761436149. The next prime is 2761436201. The reversal of 2761436161 is 1616341672.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2761436161 - 2⁵ = 2761436129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2761436161.

It is not an unprimeable number, because it can be changed into a prime (2761431161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125519815 + ... + 125519836.

It is an arithmetic number, because the mean of its divisors is an integer number (753118956).

Almost surely, 2^2761436161 is an apocalyptic number.

It is an amenable number.

2761436161 is a deficient number, since it is larger than the sum of its proper divisors (251039663).

2761436161 is a wasteful number, since it uses less digits than its factorization.

2761436161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251039662.

The product of its digits is 36288, while the sum is 37.

The square root of 2761436161 is about 52549.3687973509. The cubic root of 2761436161 is about 1402.9590747232.

The spelling of 2761436161 in words is "two billion, seven hundred sixty-one million, four hundred thirty-six thousand, one hundred sixty-one".