28056140752 has 40 divisors (see below), whose sum is σ = 55443415680. Its totient is φ = 13750450560.

The previous prime is 28056140747. The next prime is 28056140767. The reversal of 28056140752 is 25704165082.

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, 125149 + ... + 267907.

It is an arithmetic number, because the mean of its divisors is an integer number (1386085392).

Almost surely, 2^28056140752 is an apocalyptic number.

It is an amenable number.

28056140752 is a deficient number, since it is larger than the sum of its proper divisors (27387274928).

28056140752 is a wasteful number, since it uses less digits than its factorization.

28056140752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143011 (or 143005 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 28056140752 in words is "twenty-eight billion, fifty-six million, one hundred forty thousand, seven hundred fifty-two".