97123229378 has 18 divisors (see below), whose sum is σ = 169475508153. Its totient is φ = 41622918960.

The previous prime is 97123229377. The next prime is 97123229407. The reversal of 97123229378 is 87392232179.

It can be written as a sum of positive squares in 2 ways, for example, as 71648834929 + 25474394449 = 267673^2 + 159607^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=220367.

It is not an unprimeable number, because it can be changed into a prime (97123229377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3069398 + ... + 3100878.

Almost surely, 2^97123229378 is an apocalyptic number.

97123229378 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

97123229378 is a deficient number, since it is larger than the sum of its proper divisors (72352278775).

97123229378 is an frugal number, since it uses more digits than its factorization.

97123229378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62978 (or 31490 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The spelling of 97123229378 in words is "ninety-seven billion, one hundred twenty-three million, two hundred twenty-nine thousand, three hundred seventy-eight".