73839244345 has 4 divisors (see below), whose sum is σ = 88607093220. Its totient is φ = 59071395472.

The previous prime is 73839244343. The next prime is 73839244397. The reversal of 73839244345 is 54344293837.

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 26902888441 + 46936355904 = 164021^2 + 216648^2 .

It is a cyclic number.

It is not a de Polignac number, because 73839244345 - 2¹ = 73839244343 is a prime.

It is a super-2 number, since 2×73839244345² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73839244292 and 73839244301.

It is not an unprimeable number, because it can be changed into a prime (73839244343) 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, 7383924430 + ... + 7383924439.

It is an arithmetic number, because the mean of its divisors is an integer number (22151773305).

Almost surely, 2^73839244345 is an apocalyptic number.

It is an amenable number.

73839244345 is a deficient number, since it is larger than the sum of its proper divisors (14767848875).

73839244345 is a wasteful number, since it uses less digits than its factorization.

73839244345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14767848874.

The product of its digits is 8709120, while the sum is 52.

The spelling of 73839244345 in words is "seventy-three billion, eight hundred thirty-nine million, two hundred forty-four thousand, three hundred forty-five".