28025005300491 has 8 divisors (see below), whose sum is σ = 37635498725440. Its totient is φ = 18548924371272.

The previous prime is 28025005300489. The next prime is 28025005300511. The reversal of 28025005300491 is 19400350052082.

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

It is not a de Polignac number, because 28025005300491 - 2¹ = 28025005300489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28025005300441) 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, 33603123445 + ... + 33603124278.

It is an arithmetic number, because the mean of its divisors is an integer number (4704437340680).

Almost surely, 2^{28025005300491} is an apocalyptic number.

28025005300491 is a deficient number, since it is larger than the sum of its proper divisors (9610493424949).

28025005300491 is a wasteful number, since it uses less digits than its factorization.

28025005300491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67206247865.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 28025005300491 in words is "twenty-eight trillion, twenty-five billion, five million, three hundred thousand, four hundred ninety-one".