97468861891 has 2 divisors, whose sum is σ = 97468861892. Its totient is φ = 97468861890.

The previous prime is 97468861877. The next prime is 97468861969. The reversal of 97468861891 is 19816886479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97468861891 - 2²¹ = 97466764739 is a prime.

It is not a weakly prime, because it can be changed into another prime (97468861291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48734430945 + 48734430946.

It is an arithmetic number, because the mean of its divisors is an integer number (48734430946).

Almost surely, 2^97468861891 is an apocalyptic number.

97468861891 is a deficient number, since it is larger than the sum of its proper divisors (1).

97468861891 is an equidigital number, since it uses as much as digits as its factorization.

97468861891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41803776, while the sum is 67.

The spelling of 97468861891 in words is "ninety-seven billion, four hundred sixty-eight million, eight hundred sixty-one thousand, eight hundred ninety-one".