28601808357 has 8 divisors (see below), whose sum is σ = 38196184000. Its totient is φ = 19037652480.

The previous prime is 28601808293. The next prime is 28601808397. The reversal of 28601808357 is 75380810682.

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

It is not a de Polignac number, because 28601808357 - 2⁶ = 28601808293 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 (28601808397) 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, 7552732 + ... + 7556517.

It is an arithmetic number, because the mean of its divisors is an integer number (4774523000).

Almost surely, 2^28601808357 is an apocalyptic number.

It is an amenable number.

28601808357 is a deficient number, since it is larger than the sum of its proper divisors (9594375643).

28601808357 is a wasteful number, since it uses less digits than its factorization.

28601808357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15109883.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 28601808357 in words is "twenty-eight billion, six hundred one million, eight hundred eight thousand, three hundred fifty-seven".