97812278020063 has 2 divisors, whose sum is σ = 97812278020064. Its totient is φ = 97812278020062.

The previous prime is 97812278019901. The next prime is 97812278020091. The reversal of 97812278020063 is 36002087221879.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36002087221879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97812278020063 - 2²⁵ = 97812244465631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97812278019986 and 97812278020013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97812278023063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48906139010031 + 48906139010032.

It is an arithmetic number, because the mean of its divisors is an integer number (48906139010032).

Almost surely, 2^{97812278020063} is an apocalyptic number.

97812278020063 is a deficient number, since it is larger than the sum of its proper divisors (1).

97812278020063 is an equidigital number, since it uses as much as digits as its factorization.

97812278020063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 97812278020063 in words is "ninety-seven trillion, eight hundred twelve billion, two hundred seventy-eight million, twenty thousand, sixty-three".