78424055011 has 8 divisors (see below), whose sum is σ = 81136242000. Its totient is φ = 75712395360.

The previous prime is 78424055009. The next prime is 78424055023. The reversal of 78424055011 is 11055042487.

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 78424055011 - 2¹ = 78424055009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78424055111) 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, 183565 + ... + 436513.

It is an arithmetic number, because the mean of its divisors is an integer number (10142030250).

Almost surely, 2^78424055011 is an apocalyptic number.

78424055011 is a deficient number, since it is larger than the sum of its proper divisors (2712186989).

78424055011 is a wasteful number, since it uses less digits than its factorization.

78424055011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263669.

The product of its (nonzero) digits is 44800, while the sum is 37.

Adding to 78424055011 its reverse (11055042487), we get a palindrome (89479097498).

The spelling of 78424055011 in words is "seventy-eight billion, four hundred twenty-four million, fifty-five thousand, eleven".