19497245884507 has 2 divisors, whose sum is σ = 19497245884508. Its totient is φ = 19497245884506.

The previous prime is 19497245884477. The next prime is 19497245884531. The reversal of 19497245884507 is 70548854279491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19497245884507 - 2³⁵ = 19462886146139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19497245884507.

It is not a weakly prime, because it can be changed into another prime (19497245884807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9748622942253 + 9748622942254.

It is an arithmetic number, because the mean of its divisors is an integer number (9748622942254).

Almost surely, 2^{19497245884507} is an apocalyptic number.

19497245884507 is a deficient number, since it is larger than the sum of its proper divisors (1).

19497245884507 is an equidigital number, since it uses as much as digits as its factorization.

19497245884507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 812851200, while the sum is 73.

The spelling of 19497245884507 in words is "nineteen trillion, four hundred ninety-seven billion, two hundred forty-five million, eight hundred eighty-four thousand, five hundred seven".