78306204508 has 48 divisors (see below), whose sum is σ = 166441625280. Its totient is φ = 31468225536.

The previous prime is 78306204481. The next prime is 78306204601. The reversal of 78306204508 is 80540260387.

It is a super-2 number, since 2×78306204508² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177735 + ... + 433822.

It is an arithmetic number, because the mean of its divisors is an integer number (3467533860).

Almost surely, 2^78306204508 is an apocalyptic number.

It is an amenable number.

78306204508 is an abundant number, since it is smaller than the sum of its proper divisors (88135420772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78306204508 is a wasteful number, since it uses less digits than its factorization.

78306204508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611854 (or 611852 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 78306204508 in words is "seventy-eight billion, three hundred six million, two hundred four thousand, five hundred eight".