28069251891413 has 8 divisors (see below), whose sum is σ = 28277678247840. Its totient is φ = 27860918239440.

The previous prime is 28069251891407. The next prime is 28069251891433. The reversal of 28069251891413 is 31419815296082.

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 28069251891413 - 2³⁴ = 28052072022229 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 (28069251891433) 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, 22568243 + ... + 23779488.

It is an arithmetic number, because the mean of its divisors is an integer number (3534709780980).

Almost surely, 2^{28069251891413} is an apocalyptic number.

It is an amenable number.

28069251891413 is a deficient number, since it is larger than the sum of its proper divisors (208426356427).

28069251891413 is a wasteful number, since it uses less digits than its factorization.

28069251891413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46352227.

The product of its (nonzero) digits is 7464960, while the sum is 59.

The spelling of 28069251891413 in words is "twenty-eight trillion, sixty-nine billion, two hundred fifty-one million, eight hundred ninety-one thousand, four hundred thirteen".