72259344139 has 4 divisors (see below), whose sum is σ = 74212299424. Its totient is φ = 70306388856.

The previous prime is 72259344133. The next prime is 72259344149. The reversal of 72259344139 is 93144395227.

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 72259344139 - 2³¹ = 70111860491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72259344092 and 72259344101.

It is not an unprimeable number, because it can be changed into a prime (72259344133) 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 3 ways as a sum of consecutive naturals, for example, 976477587 + ... + 976477660.

It is an arithmetic number, because the mean of its divisors is an integer number (18553074856).

Almost surely, 2^72259344139 is an apocalyptic number.

72259344139 is a deficient number, since it is larger than the sum of its proper divisors (1952955285).

72259344139 is a wasteful number, since it uses less digits than its factorization.

72259344139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952955284.

The product of its digits is 1632960, while the sum is 49.

It can be divided in two parts, 7225 and 9344139, that added together give a square (9351364 = 3058²).

The spelling of 72259344139 in words is "seventy-two billion, two hundred fifty-nine million, three hundred forty-four thousand, one hundred thirty-nine".