7678334428 has 24 divisors (see below), whose sum is σ = 13532106672. Its totient is φ = 3812075904.

The previous prime is 7678334423. The next prime is 7678334429. The reversal of 7678334428 is 8244338767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7678334423) 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 in 7 ways as a sum of consecutive naturals, for example, 565576 + ... + 578992.

It is an arithmetic number, because the mean of its divisors is an integer number (563837778).

Almost surely, 2^7678334428 is an apocalyptic number.

It is an amenable number.

7678334428 is a deficient number, since it is larger than the sum of its proper divisors (5853772244).

7678334428 is a wasteful number, since it uses less digits than its factorization.

7678334428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421 (or 14419 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 52.

The square root of 7678334428 is about 87626.1058589277. The cubic root of 7678334428 is about 1972.8270222853.

The spelling of 7678334428 in words is "seven billion, six hundred seventy-eight million, three hundred thirty-four thousand, four hundred twenty-eight".