19962503197 has 32 divisors (see below), whose sum is σ = 25903422720. Its totient is φ = 14939458560.

The previous prime is 19962503189. The next prime is 19962503237. The reversal of 19962503197 is 79130526991.

It is a happy number.

It is not a de Polignac number, because 19962503197 - 2³ = 19962503189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19962503177) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1120197 + ... + 1137877.

It is an arithmetic number, because the mean of its divisors is an integer number (809481960).

Almost surely, 2^19962503197 is an apocalyptic number.

It is an amenable number.

19962503197 is a deficient number, since it is larger than the sum of its proper divisors (5940919523).

19962503197 is a wasteful number, since it uses less digits than its factorization.

19962503197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373.

The product of its (nonzero) digits is 918540, while the sum is 52.

The spelling of 19962503197 in words is "nineteen billion, nine hundred sixty-two million, five hundred three thousand, one hundred ninety-seven".