2124779679 has 24 divisors (see below), whose sum is σ = 3358952064. Its totient is φ = 1283586000.

The previous prime is 2124779669. The next prime is 2124779707. The reversal of 2124779679 is 9769774212.

2124779679 is a `hidden beast` number, since 2 + 12 + 477 + 96 + 79 = 666.

It is not a de Polignac number, because 2124779679 - 2⁵ = 2124779647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124779609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3717 + ... + 65294.

It is an arithmetic number, because the mean of its divisors is an integer number (139956336).

Almost surely, 2^2124779679 is an apocalyptic number.

2124779679 is a deficient number, since it is larger than the sum of its proper divisors (1234172385).

2124779679 is a wasteful number, since it uses less digits than its factorization.

2124779679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69339 (or 69336 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 2124779679 is about 46095.3325077496. The cubic root of 2124779679 is about 1285.5963618459.

The spelling of 2124779679 in words is "two billion, one hundred twenty-four million, seven hundred seventy-nine thousand, six hundred seventy-nine".