28002798938 has 8 divisors (see below), whose sum is σ = 42005661600. Its totient is φ = 14000911740.

The previous prime is 28002798913. The next prime is 28002798979. The reversal of 28002798938 is 83989720082.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167288 + ... + 289811.

It is an arithmetic number, because the mean of its divisors is an integer number (5250707700).

Almost surely, 2^28002798938 is an apocalyptic number.

28002798938 is a deficient number, since it is larger than the sum of its proper divisors (14002862662).

28002798938 is a wasteful number, since it uses less digits than its factorization.

28002798938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487732.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 28002798938 in words is "twenty-eight billion, two million, seven hundred ninety-eight thousand, nine hundred thirty-eight".