97551815579 has 2 divisors, whose sum is σ = 97551815580. Its totient is φ = 97551815578.

The previous prime is 97551815573. The next prime is 97551815629.

97551815579 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 97551815579 - 2⁴ = 97551815563 is a prime.

It is not a weakly prime, because it can be changed into another prime (97551815573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48775907789 + 48775907790.

It is an arithmetic number, because the mean of its divisors is an integer number (48775907790).

Almost surely, 2^97551815579 is an apocalyptic number.

97551815579 is a deficient number, since it is larger than the sum of its proper divisors (1).

97551815579 is an equidigital number, since it uses as much as digits as its factorization.

97551815579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19845000, while the sum is 62.

The spelling of 97551815579 in words is "ninety-seven billion, five hundred fifty-one million, eight hundred fifteen thousand, five hundred seventy-nine".