28506857570413 has 8 divisors (see below), whose sum is σ = 29085714536256. Its totient is φ = 27932927047200.

The previous prime is 28506857570371. The next prime is 28506857570453. The reversal of 28506857570413 is 31407575860582.

It is a happy number.

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 28506857570413 - 2¹³ = 28506857562221 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 (28506857570453) 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, 1231598968 + ... + 1231622113.

It is an arithmetic number, because the mean of its divisors is an integer number (3635714317032).

Almost surely, 2^{28506857570413} is an apocalyptic number.

It is an amenable number.

28506857570413 is a deficient number, since it is larger than the sum of its proper divisors (578856965843).

28506857570413 is a wasteful number, since it uses less digits than its factorization.

28506857570413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463221315.

The product of its (nonzero) digits is 56448000, while the sum is 61.

The spelling of 28506857570413 in words is "twenty-eight trillion, five hundred six billion, eight hundred fifty-seven million, five hundred seventy thousand, four hundred thirteen".