102126538568 has 16 divisors (see below), whose sum is σ = 191494761660. Its totient is φ = 51061268800.

The previous prime is 102126538543. The next prime is 102126538573. The reversal of 102126538568 is 865835621201.

It can be written as a sum of positive squares in 2 ways, for example, as 102119871844 + 6666724 = 319562^2 + 2582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20723 + ... + 452418.

Almost surely, 2^102126538568 is an apocalyptic number.

It is an amenable number.

102126538568 is a deficient number, since it is larger than the sum of its proper divisors (89368223092).

102126538568 is a wasteful number, since it uses less digits than its factorization.

102126538568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500128 (or 500124 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 102126538568 in words is "one hundred two billion, one hundred twenty-six million, five hundred thirty-eight thousand, five hundred sixty-eight".