73661094071 has 4 divisors (see below), whose sum is σ = 73850454600. Its totient is φ = 73471733544.

The previous prime is 73661094047. The next prime is 73661094079. The reversal of 73661094071 is 17049016637.

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

It is a cyclic number.

It is not a de Polignac number, because 73661094071 - 2¹⁴ = 73661077687 is a prime.

It is a super-2 number, since 2×73661094071² (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 (73661094079) 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, 94679681 + ... + 94680458.

It is an arithmetic number, because the mean of its divisors is an integer number (18462613650).

Almost surely, 2^73661094071 is an apocalyptic number.

73661094071 is a deficient number, since it is larger than the sum of its proper divisors (189360529).

73661094071 is a wasteful number, since it uses less digits than its factorization.

73661094071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189360528.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 73661094071 in words is "seventy-three billion, six hundred sixty-one million, ninety-four thousand, seventy-one".