73680511879 has 8 divisors (see below), whose sum is σ = 79377789680. Its totient is φ = 67987454976.

The previous prime is 73680511873. The next prime is 73680511907. The reversal of 73680511879 is 97811508637.

It is a happy number.

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 73680511879 - 2¹¹ = 73680509831 is a prime.

It is a super-2 number, since 2×73680511879² (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 (73680511873) 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 7 ways as a sum of consecutive naturals, for example, 1018917 + ... + 1088830.

It is an arithmetic number, because the mean of its divisors is an integer number (9922223710).

Almost surely, 2^73680511879 is an apocalyptic number.

73680511879 is a deficient number, since it is larger than the sum of its proper divisors (5697277801).

73680511879 is a wasteful number, since it uses less digits than its factorization.

73680511879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110449.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 73680511879 in words is "seventy-three billion, six hundred eighty million, five hundred eleven thousand, eight hundred seventy-nine".