19497245881983 has 16 divisors (see below), whose sum is σ = 26488625809536. Its totient is φ = 12752048293920.

The previous prime is 19497245881937. The next prime is 19497245882017. The reversal of 19497245881983 is 38918854279491.

It is a happy number.

It is not a de Polignac number, because 19497245881983 - 2³² = 19492950914687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19497245881899 and 19497245881908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19497245881903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1819885 + ... + 6504342.

It is an arithmetic number, because the mean of its divisors is an integer number (1655539113096).

Almost surely, 2^{19497245881983} is an apocalyptic number.

19497245881983 is a deficient number, since it is larger than the sum of its proper divisors (6991379927553).

19497245881983 is a wasteful number, since it uses less digits than its factorization.

19497245881983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339014.

The product of its digits is 1254113280, while the sum is 78.

The spelling of 19497245881983 in words is "nineteen trillion, four hundred ninety-seven billion, two hundred forty-five million, eight hundred eighty-one thousand, nine hundred eighty-three".