28274578343 has 8 divisors (see below), whose sum is σ = 31267529616. Its totient is φ = 25352049600.

The previous prime is 28274578327. The next prime is 28274578349. The reversal of 28274578343 is 34387547282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28274578343 - 2⁴ = 28274578327 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 (28274578349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17604788 + ... + 17606393.

It is an arithmetic number, because the mean of its divisors is an integer number (3908441202).

Almost surely, 2^28274578343 is an apocalyptic number.

28274578343 is a deficient number, since it is larger than the sum of its proper divisors (2992951273).

28274578343 is a wasteful number, since it uses less digits than its factorization.

28274578343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35211265.

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

The spelling of 28274578343 in words is "twenty-eight billion, two hundred seventy-four million, five hundred seventy-eight thousand, three hundred forty-three".