97179494851 has 2 divisors, whose sum is σ = 97179494852. Its totient is φ = 97179494850.

The previous prime is 97179494843. The next prime is 97179494933. The reversal of 97179494851 is 15849497179.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97179494851 - 2³ = 97179494843 is a prime.

It is not a weakly prime, because it can be changed into another prime (97179494051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48589747425 + 48589747426.

It is an arithmetic number, because the mean of its divisors is an integer number (48589747426).

Almost surely, 2^97179494851 is an apocalyptic number.

97179494851 is a deficient number, since it is larger than the sum of its proper divisors (1).

97179494851 is an equidigital number, since it uses as much as digits as its factorization.

97179494851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 64.

The spelling of 97179494851 in words is "ninety-seven billion, one hundred seventy-nine million, four hundred ninety-four thousand, eight hundred fifty-one".