97454453491 has 2 divisors, whose sum is σ = 97454453492. Its totient is φ = 97454453490.

The previous prime is 97454453441. The next prime is 97454453501. The reversal of 97454453491 is 19435445479.

It is a strong prime.

It is an emirp because it is prime and its reverse (19435445479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97454453491 - 2¹¹ = 97454451443 is a prime.

It is not a weakly prime, because it can be changed into another prime (97454453441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48727226745 + 48727226746.

It is an arithmetic number, because the mean of its divisors is an integer number (48727226746).

Almost surely, 2^97454453491 is an apocalyptic number.

97454453491 is a deficient number, since it is larger than the sum of its proper divisors (1).

97454453491 is an equidigital number, since it uses as much as digits as its factorization.

97454453491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The spelling of 97454453491 in words is "ninety-seven billion, four hundred fifty-four million, four hundred fifty-three thousand, four hundred ninety-one".