78824457411 has 16 divisors (see below), whose sum is σ = 120990203904. Its totient is φ = 44713767744.

The previous prime is 78824457409. The next prime is 78824457449. The reversal of 78824457411 is 11475442887.

It is not a de Polignac number, because 78824457411 - 2¹ = 78824457409 is a prime.

It is a super-2 number, since 2×78824457411² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78824457451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13696195 + ... + 13701948.

It is an arithmetic number, because the mean of its divisors is an integer number (7561887744).

Almost surely, 2^78824457411 is an apocalyptic number.

78824457411 is a deficient number, since it is larger than the sum of its proper divisors (42165746493).

78824457411 is a wasteful number, since it uses less digits than its factorization.

78824457411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27398290.

The product of its digits is 2007040, while the sum is 51.

The spelling of 78824457411 in words is "seventy-eight billion, eight hundred twenty-four million, four hundred fifty-seven thousand, four hundred eleven".