78382013558 has 16 divisors (see below), whose sum is σ = 118420982304. Its totient is φ = 38908771200.

The previous prime is 78382013557. The next prime is 78382013561. The reversal of 78382013558 is 85531028387.

It is a super-2 number, since 2×78382013558² (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 (78382013557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273191 + ... + 481037.

It is an arithmetic number, because the mean of its divisors is an integer number (7401311394).

Almost surely, 2^78382013558 is an apocalyptic number.

78382013558 is a deficient number, since it is larger than the sum of its proper divisors (40038968746).

78382013558 is a wasteful number, since it uses less digits than its factorization.

78382013558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209207.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 78382013558 in words is "seventy-eight billion, three hundred eighty-two million, thirteen thousand, five hundred fifty-eight".