97898104819 has 2 divisors, whose sum is σ = 97898104820. Its totient is φ = 97898104818.

The previous prime is 97898104807. The next prime is 97898104877. The reversal of 97898104819 is 91840189879.

It is a weak prime.

It is an emirp because it is prime and its reverse (91840189879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97898104819 - 2²¹ = 97896007667 is a prime.

It is a super-2 number, since 2×97898104819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97898104019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48949052409 + 48949052410.

It is an arithmetic number, because the mean of its divisors is an integer number (48949052410).

Almost surely, 2^97898104819 is an apocalyptic number.

97898104819 is a deficient number, since it is larger than the sum of its proper divisors (1).

97898104819 is an equidigital number, since it uses as much as digits as its factorization.

97898104819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 64.

The spelling of 97898104819 in words is "ninety-seven billion, eight hundred ninety-eight million, one hundred four thousand, eight hundred nineteen".