2687161079 has 4 divisors (see below), whose sum is σ = 2702693976. Its totient is φ = 2671628184.

The previous prime is 2687161073. The next prime is 2687161091. The reversal of 2687161079 is 9701617862.

2687161079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9701617862 = 2 ⋅4850808931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2687161079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687161073) 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, 7766189 + ... + 7766534.

It is an arithmetic number, because the mean of its divisors is an integer number (675673494).

Almost surely, 2^2687161079 is an apocalyptic number.

2687161079 is a deficient number, since it is larger than the sum of its proper divisors (15532897).

2687161079 is a wasteful number, since it uses less digits than its factorization.

2687161079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15532896.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 2687161079 is about 51837.8344358635. The cubic root of 2687161079 is about 1390.2659945035.

The spelling of 2687161079 in words is "two billion, six hundred eighty-seven million, one hundred sixty-one thousand, seventy-nine".