78807087076 has 9 divisors (see below), whose sum is σ = 137913384931. Its totient is φ = 39403262812.

The previous prime is 78807087071. The next prime is 78807087077. The reversal of 78807087076 is 67078070887.

The square root of 78807087076 is 280726.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78807087076.

It is not an unprimeable number, because it can be changed into a prime (78807087071) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 491271 + ... + 631633.

Almost surely, 2^78807087076 is an apocalyptic number.

78807087076 is the 280726-th square number.

It is an amenable number.

78807087076 is a deficient number, since it is larger than the sum of its proper divisors (59106297855).

78807087076 is an frugal number, since it uses more digits than its factorization.

78807087076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280730 (or 140365 counting only the distinct ones).

The product of its (nonzero) digits is 7375872, while the sum is 58.

The spelling of 78807087076 in words is "seventy-eight billion, eight hundred seven million, eighty-seven thousand, seventy-six".