97129221425 has 6 divisors (see below), whose sum is σ = 120440234598. Its totient is φ = 77703377120.

The previous prime is 97129221419. The next prime is 97129221433. The reversal of 97129221425 is 52412292179.

It can be written as a sum of positive squares in 3 ways, for example, as 2230106176 + 94899115249 = 47224^2 + 308057^2 .

It is not a de Polignac number, because 97129221425 - 2⁶ = 97129221361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1942584404 + ... + 1942584453.

It is an arithmetic number, because the mean of its divisors is an integer number (20073372433).

Almost surely, 2^97129221425 is an apocalyptic number.

It is an amenable number.

97129221425 is a deficient number, since it is larger than the sum of its proper divisors (23311013173).

97129221425 is a wasteful number, since it uses less digits than its factorization.

97129221425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885168867 (or 3885168862 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The spelling of 97129221425 in words is "ninety-seven billion, one hundred twenty-nine million, two hundred twenty-one thousand, four hundred twenty-five".