68990010100001 has 8 divisors (see below), whose sum is σ = 69774460416360. Its totient is φ = 68205766043008.

The previous prime is 68990010099971. The next prime is 68990010100007. The reversal of 68990010100001 is 10000101009986.

It can be written as a sum of positive squares in 4 ways, for example, as 9315003098401 + 59675007001600 = 3052049^2 + 7724960^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68990010100001 - 2²² = 68990005905697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68990010100007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50892026 + ... + 52230051.

It is an arithmetic number, because the mean of its divisors is an integer number (8721807552045).

Almost surely, 2^{68990010100001} is an apocalyptic number.

It is an amenable number.

68990010100001 is a deficient number, since it is larger than the sum of its proper divisors (784450316359).

68990010100001 is a wasteful number, since it uses less digits than its factorization.

68990010100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103129683.

The product of its (nonzero) digits is 3888, while the sum is 35.

Adding to 68990010100001 its reverse (10000101009986), we get a palindrome (78990111109987).

The spelling of 68990010100001 in words is "sixty-eight trillion, nine hundred ninety billion, ten million, one hundred thousand, one".