28134480751 has 4 divisors (see below), whose sum is σ = 30298671592. Its totient is φ = 25970289912.

The previous prime is 28134480719. The next prime is 28134480821. The reversal of 28134480751 is 15708443182.

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 28134480751 - 2⁵ = 28134480719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28134480698 and 28134480707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28134180751) 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, 1082095401 + ... + 1082095426.

It is an arithmetic number, because the mean of its divisors is an integer number (7574667898).

Almost surely, 2^28134480751 is an apocalyptic number.

28134480751 is a deficient number, since it is larger than the sum of its proper divisors (2164190841).

28134480751 is a wasteful number, since it uses less digits than its factorization.

28134480751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164190840.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 28134480751 in words is "twenty-eight billion, one hundred thirty-four million, four hundred eighty thousand, seven hundred fifty-one".