2779540608 has 64 divisors (see below), whose sum is σ = 7951104000. Its totient is φ = 855241728.

The previous prime is 2779540573. The next prime is 2779540649. The reversal of 2779540608 is 8060459772.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273408 + ... + 283391.

It is an arithmetic number, because the mean of its divisors is an integer number (124236000).

Almost surely, 2^2779540608 is an apocalyptic number.

It is an amenable number.

2779540608 is an abundant number, since it is smaller than the sum of its proper divisors (5171563392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2779540608 is a wasteful number, since it uses less digits than its factorization.

2779540608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556829 (or 556817 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 2779540608 is about 52721.3486929157. The cubic root of 2779540608 is about 1406.0184116723.

The spelling of 2779540608 in words is "two billion, seven hundred seventy-nine million, five hundred forty thousand, six hundred eight".