2878738934 has 4 divisors (see below), whose sum is σ = 4318108404. Its totient is φ = 1439369466.

The previous prime is 2878738927. The next prime is 2878738939. The reversal of 2878738934 is 4398378782.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878738939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719684732 + ... + 719684735.

It is an arithmetic number, because the mean of its divisors is an integer number (1079527101).

Almost surely, 2^2878738934 is an apocalyptic number.

2878738934 is a deficient number, since it is larger than the sum of its proper divisors (1439369470).

2878738934 is a wasteful number, since it uses less digits than its factorization.

2878738934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439369469.

The product of its digits is 16257024, while the sum is 59.

The square root of 2878738934 is about 53653.8808847971. The cubic root of 2878738934 is about 1422.5496304971.

The spelling of 2878738934 in words is "two billion, eight hundred seventy-eight million, seven hundred thirty-eight thousand, nine hundred thirty-four".