28198906935 has 8 divisors (see below), whose sum is σ = 45118251120. Its totient is φ = 15039417024.

The previous prime is 28198906933. The next prime is 28198906949. The reversal of 28198906935 is 53960989182.

It is a happy number.

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

It is not a de Polignac number, because 28198906935 - 2¹ = 28198906933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28198906933) 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, 939963550 + ... + 939963579.

It is an arithmetic number, because the mean of its divisors is an integer number (5639781390).

Almost surely, 2^28198906935 is an apocalyptic number.

28198906935 is a deficient number, since it is larger than the sum of its proper divisors (16919344185).

28198906935 is a wasteful number, since it uses less digits than its factorization.

28198906935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879927137.

The product of its (nonzero) digits is 8398080, while the sum is 60.

The spelling of 28198906935 in words is "twenty-eight billion, one hundred ninety-eight million, nine hundred six thousand, nine hundred thirty-five".