97729788370 has 8 divisors (see below), whose sum is σ = 175913619084. Its totient is φ = 39091915344.

The previous prime is 97729788337. The next prime is 97729788371. The reversal of 97729788370 is 7388792779.

It can be written as a sum of positive squares in 2 ways, for example, as 97420767129 + 309021241 = 312123^2 + 17579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×97729788370² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97729788296 and 97729788305.

It is not an unprimeable number, because it can be changed into a prime (97729788371) 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 in 3 ways as a sum of consecutive naturals, for example, 4886489409 + ... + 4886489428.

Almost surely, 2^97729788370 is an apocalyptic number.

97729788370 is a deficient number, since it is larger than the sum of its proper divisors (78183830714).

97729788370 is a wasteful number, since it uses less digits than its factorization.

97729788370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772978844.

The product of its (nonzero) digits is 74680704, while the sum is 67.

The spelling of 97729788370 in words is "ninety-seven billion, seven hundred twenty-nine million, seven hundred eighty-eight thousand, three hundred seventy".