28135561413 has 8 divisors (see below), whose sum is σ = 37988944000. Its totient is φ = 18519609888.

The previous prime is 28135561411. The next prime is 28135561439. The reversal of 28135561413 is 31416553182.

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

It is not a de Polignac number, because 28135561413 - 2¹ = 28135561411 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 (28135561411) 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, 59357488 + ... + 59357961.

It is an arithmetic number, because the mean of its divisors is an integer number (4748618000).

Almost surely, 2^28135561413 is an apocalyptic number.

It is an amenable number.

28135561413 is a deficient number, since it is larger than the sum of its proper divisors (9853382587).

28135561413 is a wasteful number, since it uses less digits than its factorization.

28135561413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118715531.

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

The spelling of 28135561413 in words is "twenty-eight billion, one hundred thirty-five million, five hundred sixty-one thousand, four hundred thirteen".