73539009806378 has 8 divisors (see below), whose sum is σ = 110969044738272. Its totient is φ = 36549328226956.

The previous prime is 73539009806371. The next prime is 73539009806393. The reversal of 73539009806378 is 87360890093537.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73539009806371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110088337700 + ... + 110088338367.

It is an arithmetic number, because the mean of its divisors is an integer number (13871130592284).

Almost surely, 2^{73539009806378} is an apocalyptic number.

73539009806378 is a deficient number, since it is larger than the sum of its proper divisors (37430034931894).

73539009806378 is a wasteful number, since it uses less digits than its factorization.

73539009806378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220176676236.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 73539009806378 in words is "seventy-three trillion, five hundred thirty-nine billion, nine million, eight hundred six thousand, three hundred seventy-eight".