28395006142 has 4 divisors (see below), whose sum is σ = 42592509216. Its totient is φ = 14197503070.

The previous prime is 28395006061. The next prime is 28395006161. The reversal of 28395006142 is 24160059382.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 28395006095 and 28395006104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7098751534 + ... + 7098751537.

It is an arithmetic number, because the mean of its divisors is an integer number (10648127304).

Almost surely, 2^28395006142 is an apocalyptic number.

28395006142 is a deficient number, since it is larger than the sum of its proper divisors (14197503074).

28395006142 is a wasteful number, since it uses less digits than its factorization.

28395006142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197503073.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 28395006142 in words is "twenty-eight billion, three hundred ninety-five million, six thousand, one hundred forty-two".