28056006542 has 16 divisors (see below), whose sum is σ = 45400288752. Its totient is φ = 12953715840.

The previous prime is 28056006521. The next prime is 28056006551. The reversal of 28056006542 is 24560065082.

It is a junction number, because it is equal to n+sod(n) for n = 28056006496 and 28056006505.

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, 7782884 + ... + 7786487.

It is an arithmetic number, because the mean of its divisors is an integer number (2837518047).

Almost surely, 2^28056006542 is an apocalyptic number.

28056006542 is a deficient number, since it is larger than the sum of its proper divisors (17344282210).

28056006542 is a wasteful number, since it uses less digits than its factorization.

28056006542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15569443.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 28056006542 in words is "twenty-eight billion, fifty-six million, six thousand, five hundred forty-two".