28193690202 has 32 divisors (see below), whose sum is σ = 57715468800. Its totient is φ = 9176675760.

The previous prime is 28193690197. The next prime is 28193690257. The reversal of 28193690202 is 20209639182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000299 + ... + 1028097.

It is an arithmetic number, because the mean of its divisors is an integer number (1803608400).

Almost surely, 2^28193690202 is an apocalyptic number.

28193690202 is an abundant number, since it is smaller than the sum of its proper divisors (29521778598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28193690202 is a wasteful number, since it uses less digits than its factorization.

28193690202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31778.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 28193690202 in words is "twenty-eight billion, one hundred ninety-three million, six hundred ninety thousand, two hundred two".