2779666052 has 6 divisors (see below), whose sum is σ = 4864415598. Its totient is φ = 1389833024.

The previous prime is 2779666031. The next prime is 2779666061. The reversal of 2779666052 is 2506669772.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2546615296 + 233050756 = 50464^2 + 15266^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347458253 + ... + 347458260.

It is an arithmetic number, because the mean of its divisors is an integer number (810735933).

Almost surely, 2^2779666052 is an apocalyptic number.

It is an amenable number.

2779666052 is a deficient number, since it is larger than the sum of its proper divisors (2084749546).

2779666052 is a wasteful number, since it uses less digits than its factorization.

2779666052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694916517 (or 694916515 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 2779666052 is about 52722.5383683297. The cubic root of 2779666052 is about 1406.0395631197.

The spelling of 2779666052 in words is "two billion, seven hundred seventy-nine million, six hundred sixty-six thousand, fifty-two".