28078603742 has 16 divisors (see below), whose sum is σ = 48950593920. Its totient is φ = 11829726168.

The previous prime is 28078603739. The next prime is 28078603789. The reversal of 28078603742 is 24730687082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16995908 + ... + 16997559.

It is an arithmetic number, because the mean of its divisors is an integer number (3059412120).

Almost surely, 2^28078603742 is an apocalyptic number.

28078603742 is a deficient number, since it is larger than the sum of its proper divisors (20871990178).

28078603742 is a wasteful number, since it uses less digits than its factorization.

28078603742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33993535.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 28078603742 in words is "twenty-eight billion, seventy-eight million, six hundred three thousand, seven hundred forty-two".