28707247295 has 8 divisors (see below), whose sum is σ = 34456452624. Its totient is φ = 22960627264.

The previous prime is 28707247279. The next prime is 28707247297. The reversal of 28707247295 is 59274270782.

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 28707247295 - 2⁴ = 28707247279 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 (28707247297) 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, 621809 + ... + 666378.

It is an arithmetic number, because the mean of its divisors is an integer number (4307056578).

Almost surely, 2^28707247295 is an apocalyptic number.

28707247295 is a deficient number, since it is larger than the sum of its proper divisors (5749205329).

28707247295 is a wasteful number, since it uses less digits than its factorization.

28707247295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292649.

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 28707247295 in words is "twenty-eight billion, seven hundred seven million, two hundred forty-seven thousand, two hundred ninety-five".