78863263661592 has 80 divisors (see below), whose sum is σ = 230494079827440. Its totient is φ = 25144808698944.

The previous prime is 78863263661591. The next prime is 78863263661627. The reversal of 78863263661592 is 29516636236887.

78863263661592 is a `hidden beast` number, since 7 + 8 + 8 + 6 + 3 + 26 + 3 + 6 + 6 + 1 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 78863263661592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78863263661591) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2645693083 + ... + 2645722890.

It is an arithmetic number, because the mean of its divisors is an integer number (2881175997843).

Almost surely, 2^{78863263661592} is an apocalyptic number.

78863263661592 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78863263661592 is an abundant number, since it is smaller than the sum of its proper divisors (151630816165848).

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

78863263661592 is a wasteful number, since it uses less digits than its factorization.

78863263661592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291416014 (or 5291416001 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 72.

The spelling of 78863263661592 in words is "seventy-eight trillion, eight hundred sixty-three billion, two hundred sixty-three million, six hundred sixty-one thousand, five hundred ninety-two".