28874352743 has 4 divisors (see below), whose sum is σ = 30129759408. Its totient is φ = 27618946080.

The previous prime is 28874352739. The next prime is 28874352761. The reversal of 28874352743 is 34725347882.

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 28874352743 - 2² = 28874352739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874352713) 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, 627703298 + ... + 627703343.

It is an arithmetic number, because the mean of its divisors is an integer number (7532439852).

Almost surely, 2^28874352743 is an apocalyptic number.

28874352743 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28874352743 is a deficient number, since it is larger than the sum of its proper divisors (1255406665).

28874352743 is a wasteful number, since it uses less digits than its factorization.

28874352743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255406664.

The product of its digits is 9031680, while the sum is 53.

The spelling of 28874352743 in words is "twenty-eight billion, eight hundred seventy-four million, three hundred fifty-two thousand, seven hundred forty-three".