6654279879 has 24 divisors (see below), whose sum is σ = 10354361472. Its totient is φ = 4093652160.

The previous prime is 6654279871. The next prime is 6654279923. The reversal of 6654279879 is 9789724566.

6654279879 is a `hidden beast` number, since 6 + 6 + 542 + 7 + 9 + 87 + 9 = 666.

It is not a de Polignac number, because 6654279879 - 2³ = 6654279871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654279871) 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, 475969 + ... + 489749.

It is an arithmetic number, because the mean of its divisors is an integer number (431431728).

Almost surely, 2^6654279879 is an apocalyptic number.

6654279879 is a deficient number, since it is larger than the sum of its proper divisors (3700081593).

6654279879 is a wasteful number, since it uses less digits than its factorization.

6654279879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17927 (or 17924 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The square root of 6654279879 is about 81573.7695524732. The cubic root of 6654279879 is about 1880.9056937407.

The spelling of 6654279879 in words is "six billion, six hundred fifty-four million, two hundred seventy-nine thousand, eight hundred seventy-nine".