68528436761 has 8 divisors (see below), whose sum is σ = 68872151040. Its totient is φ = 68185048032.

The previous prime is 68528436703. The next prime is 68528436799. The reversal of 68528436761 is 16763482586.

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 68528436761 - 2¹⁰ = 68528435737 is a prime.

It is a super-2 number, since 2×68528436761² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68528436697 and 68528436706.

It is not an unprimeable number, because it can be changed into a prime (68528436961) 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, 346280 + ... + 506918.

It is an arithmetic number, because the mean of its divisors is an integer number (8609018880).

Almost surely, 2^68528436761 is an apocalyptic number.

It is an amenable number.

68528436761 is a deficient number, since it is larger than the sum of its proper divisors (343714279).

68528436761 is a wasteful number, since it uses less digits than its factorization.

68528436761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162775.

The product of its digits is 11612160, while the sum is 56.

The spelling of 68528436761 in words is "sixty-eight billion, five hundred twenty-eight million, four hundred thirty-six thousand, seven hundred sixty-one".