28060641247 has 8 divisors (see below), whose sum is σ = 28530624816. Its totient is φ = 27592162752.

The previous prime is 28060641239. The next prime is 28060641281. The reversal of 28060641247 is 74214606082.

It is a happy number.

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 28060641247 - 2³ = 28060641239 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 (28060641047) 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, 338638 + ... + 413275.

It is an arithmetic number, because the mean of its divisors is an integer number (3566328102).

Almost surely, 2^28060641247 is an apocalyptic number.

28060641247 is a deficient number, since it is larger than the sum of its proper divisors (469983569).

28060641247 is an equidigital number, since it uses as much as digits as its factorization.

28060641247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752537.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 28060641247 in words is "twenty-eight billion, sixty million, six hundred forty-one thousand, two hundred forty-seven".