73447779238 has 8 divisors (see below), whose sum is σ = 114961741488. Its totient is φ = 35127198744.

The previous prime is 73447779221. The next prime is 73447779241. The reversal of 73447779238 is 83297774437.

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

It is a congruent number.

It is an unprimeable number.

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, 798345381 + ... + 798345472.

It is an arithmetic number, because the mean of its divisors is an integer number (14370217686).

Almost surely, 2^73447779238 is an apocalyptic number.

73447779238 is a deficient number, since it is larger than the sum of its proper divisors (41513962250).

73447779238 is a wasteful number, since it uses less digits than its factorization.

73447779238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596690878.

The product of its digits is 49787136, while the sum is 61.

The spelling of 73447779238 in words is "seventy-three billion, four hundred forty-seven million, seven hundred seventy-nine thousand, two hundred thirty-eight".