78900578508736 has 28 divisors (see below), whose sum is σ = 156569673225280. Its totient is φ = 39449952184320.

The previous prime is 78900578508733. The next prime is 78900578508743. The reversal of 78900578508736 is 63780587500987.

It is a super-3 number, since 3×78900578508736³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78900578508733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368081 + ... + 12783151.

It is an arithmetic number, because the mean of its divisors is an integer number (5591774043760).

Almost surely, 2^{78900578508736} is an apocalyptic number.

It is an amenable number.

78900578508736 is a deficient number, since it is larger than the sum of its proper divisors (77669094716544).

78900578508736 is a wasteful number, since it uses less digits than its factorization.

78900578508736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10533452 (or 10533442 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 73.

The spelling of 78900578508736 in words is "seventy-eight trillion, nine hundred billion, five hundred seventy-eight million, five hundred eight thousand, seven hundred thirty-six".