28036128405 has 8 divisors (see below), whose sum is σ = 44857805472. Its totient is φ = 14952601808.

The previous prime is 28036128389. The next prime is 28036128413. The reversal of 28036128405 is 50482163082.

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 28036128405 - 2⁴ = 28036128389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934537599 + ... + 934537628.

It is an arithmetic number, because the mean of its divisors is an integer number (5607225684).

Almost surely, 2^28036128405 is an apocalyptic number.

It is an amenable number.

28036128405 is a deficient number, since it is larger than the sum of its proper divisors (16821677067).

28036128405 is a wasteful number, since it uses less digits than its factorization.

28036128405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869075235.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 28036128405 in words is "twenty-eight billion, thirty-six million, one hundred twenty-eight thousand, four hundred five".