72269124479 has 4 divisors (see below), whose sum is σ = 72454906680. Its totient is φ = 72083342280.

The previous prime is 72269124461. The next prime is 72269124491. The reversal of 72269124479 is 97442196227.

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 72269124479 - 2¹⁶ = 72269058943 is a prime.

It is a super-2 number, since 2×72269124479² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72269124479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72269124379) 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, 92890517 + ... + 92891294.

It is an arithmetic number, because the mean of its divisors is an integer number (18113726670).

Almost surely, 2^72269124479 is an apocalyptic number.

72269124479 is a deficient number, since it is larger than the sum of its proper divisors (185782201).

72269124479 is a wasteful number, since it uses less digits than its factorization.

72269124479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185782200.

The product of its digits is 3048192, while the sum is 53.

The spelling of 72269124479 in words is "seventy-two billion, two hundred sixty-nine million, one hundred twenty-four thousand, four hundred seventy-nine".