28045140751 has 4 divisors (see below), whose sum is σ = 29012214600. Its totient is φ = 27078066904.

The previous prime is 28045140731. The next prime is 28045140769. The reversal of 28045140751 is 15704154082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28045140751 - 2⁷ = 28045140623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28045140751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28045140701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483536881 + ... + 483536938.

It is an arithmetic number, because the mean of its divisors is an integer number (7253053650).

Almost surely, 2^28045140751 is an apocalyptic number.

28045140751 is a deficient number, since it is larger than the sum of its proper divisors (967073849).

28045140751 is an equidigital number, since it uses as much as digits as its factorization.

28045140751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967073848.

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 28045140751 in words is "twenty-eight billion, forty-five million, one hundred forty thousand, seven hundred fifty-one".