4378278622 has 4 divisors (see below), whose sum is σ = 6567417936. Its totient is φ = 2189139310.

The previous prime is 4378278613. The next prime is 4378278649. The reversal of 4378278622 is 2268728734.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094569654 + ... + 1094569657.

It is an arithmetic number, because the mean of its divisors is an integer number (1641854484).

Almost surely, 2^4378278622 is an apocalyptic number.

4378278622 is a deficient number, since it is larger than the sum of its proper divisors (2189139314).

4378278622 is a wasteful number, since it uses less digits than its factorization.

4378278622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189139313.

The product of its digits is 1806336, while the sum is 49.

The square root of 4378278622 is about 66168.5621877943. The cubic root of 4378278622 is about 1635.9416088879.

The spelling of 4378278622 in words is "four billion, three hundred seventy-eight million, two hundred seventy-eight thousand, six hundred twenty-two".