428009038195 has 4 divisors (see below), whose sum is σ = 513610845840. Its totient is φ = 342407230552.

The previous prime is 428009038187. The next prime is 428009038201. The reversal of 428009038195 is 591830900824.

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

It is a cyclic number.

It is not a de Polignac number, because 428009038195 - 2³ = 428009038187 is a prime.

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, 42800903815 + ... + 42800903824.

It is an arithmetic number, because the mean of its divisors is an integer number (128402711460).

Almost surely, 2^428009038195 is an apocalyptic number.

428009038195 is a deficient number, since it is larger than the sum of its proper divisors (85601807645).

428009038195 is an equidigital number, since it uses as much as digits as its factorization.

428009038195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85601807644.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 428009038195 in words is "four hundred twenty-eight billion, nine million, thirty-eight thousand, one hundred ninety-five".