28399597373 has 8 divisors (see below), whose sum is σ = 32591359680. Its totient is φ = 24241504320.

The previous prime is 28399597351. The next prime is 28399597453. The reversal of 28399597373 is 37379599382.

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 28399597373 - 2¹⁰ = 28399596349 is a prime.

It is a super-2 number, since 2×28399597373² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28399597273) 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, 8415503 + ... + 8418876.

It is an arithmetic number, because the mean of its divisors is an integer number (4073919960).

Almost surely, 2^28399597373 is an apocalyptic number.

It is an amenable number.

28399597373 is a deficient number, since it is larger than the sum of its proper divisors (4191762307).

28399597373 is a wasteful number, since it uses less digits than its factorization.

28399597373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16834627.

The product of its digits is 77157360, while the sum is 65.

The spelling of 28399597373 in words is "twenty-eight billion, three hundred ninety-nine million, five hundred ninety-seven thousand, three hundred seventy-three".