2773878958 has 4 divisors (see below), whose sum is σ = 4160818440. Its totient is φ = 1386939478.

The previous prime is 2773878953. The next prime is 2773878973. The reversal of 2773878958 is 8598783772.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2773878958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773878953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693469738 + ... + 693469741.

It is an arithmetic number, because the mean of its divisors is an integer number (1040204610).

Almost surely, 2^2773878958 is an apocalyptic number.

2773878958 is a deficient number, since it is larger than the sum of its proper divisors (1386939482).

2773878958 is a wasteful number, since it uses less digits than its factorization.

2773878958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386939481.

The product of its digits is 47416320, while the sum is 64.

The square root of 2773878958 is about 52667.6272296370. The cubic root of 2773878958 is about 1405.0631225044.

The spelling of 2773878958 in words is "two billion, seven hundred seventy-three million, eight hundred seventy-eight thousand, nine hundred fifty-eight".