28613394130465 has 4 divisors (see below), whose sum is σ = 34336072956564. Its totient is φ = 22890715304368.

The previous prime is 28613394130457. The next prime is 28613394130499. The reversal of 28613394130465 is 56403149331682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4666533166656 + 23946860963809 = 2160216^2 + 4893553^2 .

It is a cyclic number.

It is not a de Polignac number, because 28613394130465 - 2³ = 28613394130457 is a prime.

It is a super-2 number, since 2×28613394130465² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861339413042 + ... + 2861339413051.

It is an arithmetic number, because the mean of its divisors is an integer number (8584018239141).

Almost surely, 2^{28613394130465} is an apocalyptic number.

It is an amenable number.

28613394130465 is a deficient number, since it is larger than the sum of its proper divisors (5722678826099).

28613394130465 is an equidigital number, since it uses as much as digits as its factorization.

28613394130465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722678826098.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 28613394130465 in words is "twenty-eight trillion, six hundred thirteen billion, three hundred ninety-four million, one hundred thirty thousand, four hundred sixty-five".