28057745267 has 8 divisors (see below), whose sum is σ = 28985103360. Its totient is φ = 27131779080.

The previous prime is 28057745213. The next prime is 28057745273. The reversal of 28057745267 is 76254775082.

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

It is not a de Polignac number, because 28057745267 - 2⁶ = 28057745203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28057745167) 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, 306917 + ... + 387702.

It is an arithmetic number, because the mean of its divisors is an integer number (3623137920).

Almost surely, 2^28057745267 is an apocalyptic number.

28057745267 is a deficient number, since it is larger than the sum of its proper divisors (927358093).

28057745267 is a wasteful number, since it uses less digits than its factorization.

28057745267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695953.

The product of its (nonzero) digits is 6585600, while the sum is 53.

The spelling of 28057745267 in words is "twenty-eight billion, fifty-seven million, seven hundred forty-five thousand, two hundred sixty-seven".