28078735622 has 16 divisors (see below), whose sum is σ = 48794360352. Its totient is φ = 11868897600.

The previous prime is 28078735621. The next prime is 28078735631. The reversal of 28078735622 is 22653787082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28078735621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13736129 + ... + 13738172.

It is an arithmetic number, because the mean of its divisors is an integer number (3049647522).

Almost surely, 2^28078735622 is an apocalyptic number.

28078735622 is a deficient number, since it is larger than the sum of its proper divisors (20715624730).

28078735622 is a wasteful number, since it uses less digits than its factorization.

28078735622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27474383.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 28078735622 in words is "twenty-eight billion, seventy-eight million, seven hundred thirty-five thousand, six hundred twenty-two".