78280532269 has 8 divisors (see below), whose sum is σ = 82668180672. Its totient is φ = 73974896160.

The previous prime is 78280532263. The next prime is 78280532273. The reversal of 78280532269 is 96223508287.

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

It is a cyclic number.

It is not a de Polignac number, because 78280532269 - 2³ = 78280532261 is a prime.

It is a super-2 number, since 2×78280532269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78280532261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20501112 + ... + 20504929.

It is an arithmetic number, because the mean of its divisors is an integer number (10333522584).

Almost surely, 2^78280532269 is an apocalyptic number.

It is an amenable number.

78280532269 is a deficient number, since it is larger than the sum of its proper divisors (4387648403).

78280532269 is a wasteful number, since it uses less digits than its factorization.

78280532269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41006147.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 78280532269 in words is "seventy-eight billion, two hundred eighty million, five hundred thirty-two thousand, two hundred sixty-nine".