68475899041 has 9 divisors (see below), whose sum is σ = 75270061363. Its totient is φ = 62248200520.

The previous prime is 68475899021. The next prime is 68475899047. The reversal of 68475899041 is 14099857486.

The square root of 68475899041 is 261679.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12126634641 + 56349264400 = 110121^2 + 237380^2 .

It is not a de Polignac number, because 68475899041 - 2⁹ = 68475898529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68475899047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2866575 + ... + 2890363.

Almost surely, 2^68475899041 is an apocalyptic number.

68475899041 is the 261679-th square number.

68475899041 is the 130840-th centered octagonal number.

It is an amenable number.

68475899041 is a deficient number, since it is larger than the sum of its proper divisors (6794162322).

68475899041 is an frugal number, since it uses more digits than its factorization.

68475899041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47600 (or 23800 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 68475899041 in words is "sixty-eight billion, four hundred seventy-five million, eight hundred ninety-nine thousand, forty-one".