68659702128098 has 16 divisors (see below), whose sum is σ = 104147278551000. Its totient is φ = 33943946606592.

The previous prime is 68659702128089. The next prime is 68659702128109. The reversal of 68659702128098 is 89082120795686.

It can be written as a sum of positive squares in 4 ways, for example, as 61697930168809 + 6961771959289 = 7854803^2 + 2638517^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37658738 + ... + 39439826.

Almost surely, 2^{68659702128098} is an apocalyptic number.

68659702128098 is a deficient number, since it is larger than the sum of its proper divisors (35487576422902).

68659702128098 is a wasteful number, since it uses less digits than its factorization.

68659702128098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997749.

The product of its (nonzero) digits is 209018880, while the sum is 71.

The spelling of 68659702128098 in words is "sixty-eight trillion, six hundred fifty-nine billion, seven hundred two million, one hundred twenty-eight thousand, ninety-eight".