2779534042 has 4 divisors (see below), whose sum is σ = 4169301066. Its totient is φ = 1389767020.

The previous prime is 2779533989. The next prime is 2779534049. The reversal of 2779534042 is 2404359772.

2779534042 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.

It can be written as a sum of positive squares in only one way, i.e., 2779292961 + 241081 = 52719^2 + 491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2779534042.

It is not an unprimeable number, because it can be changed into a prime (2779534049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694883509 + ... + 694883512.

Almost surely, 2^2779534042 is an apocalyptic number.

2779534042 is a deficient number, since it is larger than the sum of its proper divisors (1389767024).

2779534042 is a wasteful number, since it uses less digits than its factorization.

2779534042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389767023.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 2779534042 is about 52721.2864220895. The cubic root of 2779534042 is about 1406.0173045441.

The spelling of 2779534042 in words is "two billion, seven hundred seventy-nine million, five hundred thirty-four thousand, forty-two".