97129204927 has 2 divisors, whose sum is σ = 97129204928. Its totient is φ = 97129204926.

The previous prime is 97129204919. The next prime is 97129204937. The reversal of 97129204927 is 72940292179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97129204927 - 2³ = 97129204919 is a prime.

It is a super-2 number, since 2×97129204927² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97129204937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48564602463 + 48564602464.

It is an arithmetic number, because the mean of its divisors is an integer number (48564602464).

Almost surely, 2^97129204927 is an apocalyptic number.

97129204927 is a deficient number, since it is larger than the sum of its proper divisors (1).

97129204927 is an equidigital number, since it uses as much as digits as its factorization.

97129204927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 97129204927 in words is "ninety-seven billion, one hundred twenty-nine million, two hundred four thousand, nine hundred twenty-seven".