78368308269 has 32 divisors (see below), whose sum is σ = 106233845760. Its totient is φ = 51383640000.

The previous prime is 78368308241. The next prime is 78368308309. The reversal of 78368308269 is 96280386387.

It is not a de Polignac number, because 78368308269 - 2¹⁹ = 78367783981 is a prime.

It is a super-2 number, since 2×78368308269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78368308229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20348194 + ... + 20352044.

It is an arithmetic number, because the mean of its divisors is an integer number (3319807680).

Almost surely, 2^78368308269 is an apocalyptic number.

It is an amenable number.

78368308269 is a deficient number, since it is larger than the sum of its proper divisors (27865537491).

78368308269 is a wasteful number, since it uses less digits than its factorization.

78368308269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441.

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 78368308269 in words is "seventy-eight billion, three hundred sixty-eight million, three hundred eight thousand, two hundred sixty-nine".