68462891061 has 4 divisors (see below), whose sum is σ = 91283854752. Its totient is φ = 45641927372.

The previous prime is 68462891027. The next prime is 68462891087. The reversal of 68462891061 is 16019826486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68462891061 - 2¹¹ = 68462889013 is a prime.

It is a super-3 number, since 3×68462891061³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68462890995 and 68462891013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68462821061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11410481841 + ... + 11410481846.

It is an arithmetic number, because the mean of its divisors is an integer number (22820963688).

Almost surely, 2^68462891061 is an apocalyptic number.

It is an amenable number.

68462891061 is a deficient number, since it is larger than the sum of its proper divisors (22820963691).

68462891061 is a wasteful number, since it uses less digits than its factorization.

68462891061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22820963690.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 68462891061 in words is "sixty-eight billion, four hundred sixty-two million, eight hundred ninety-one thousand, sixty-one".