19970473285 has 16 divisors (see below), whose sum is σ = 27391372416. Its totient is φ = 13692391488.

The previous prime is 19970473253. The next prime is 19970473297. The reversal of 19970473285 is 58237407991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19970473285 - 2⁵ = 19970473253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309214 + ... + 368176.

It is an arithmetic number, because the mean of its divisors is an integer number (1711960776).

Almost surely, 2^19970473285 is an apocalyptic number.

It is an amenable number.

19970473285 is a deficient number, since it is larger than the sum of its proper divisors (7420899131).

19970473285 is an equidigital number, since it uses as much as digits as its factorization.

19970473285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68652.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 19970473285 in words is "nineteen billion, nine hundred seventy million, four hundred seventy-three thousand, two hundred eighty-five".