73068157669 has 4 divisors (see below), whose sum is σ = 78688785196. Its totient is φ = 67447530144.

The previous prime is 73068157621. The next prime is 73068157693. The reversal of 73068157669 is 96675186037.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5344341025 + 67723816644 = 73105^2 + 260238^2 .

It is a cyclic number.

It is not a de Polignac number, because 73068157669 - 2⁹ = 73068157157 is a prime.

It is a super-2 number, since 2×73068157669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73068157969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810313744 + ... + 2810313769.

It is an arithmetic number, because the mean of its divisors is an integer number (19672196299).

Almost surely, 2^73068157669 is an apocalyptic number.

It is an amenable number.

73068157669 is a deficient number, since it is larger than the sum of its proper divisors (5620627527).

73068157669 is a wasteful number, since it uses less digits than its factorization.

73068157669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620627526.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 73068157669 in words is "seventy-three billion, sixty-eight million, one hundred fifty-seven thousand, six hundred sixty-nine".