28507507920303 has 8 divisors (see below), whose sum is σ = 38010173520000. Its totient is φ = 19004923800408.

The previous prime is 28507507920293. The next prime is 28507507920329. The reversal of 28507507920303 is 30302970570582.

It is a happy number.

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

It is not a de Polignac number, because 28507507920303 - 2⁹ = 28507507919791 is a prime.

It is a super-2 number, since 2×28507507920303² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28507507920103) 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, 19548853 + ... + 20956446.

It is an arithmetic number, because the mean of its divisors is an integer number (4751271690000).

Almost surely, 2^{28507507920303} is an apocalyptic number.

28507507920303 is a deficient number, since it is larger than the sum of its proper divisors (9502665599697).

28507507920303 is a wasteful number, since it uses less digits than its factorization.

28507507920303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40739901.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 28507507920303 in words is "twenty-eight trillion, five hundred seven billion, five hundred seven million, nine hundred twenty thousand, three hundred three".