78936348660 has 96 divisors (see below), whose sum is σ = 243087892992. Its totient is φ = 19017062400.

The previous prime is 78936348649. The next prime is 78936348691. The reversal of 78936348660 is 6684363987.

It is a super-3 number, since 3×78936348660³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 78936348594 and 78936348603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1039941 + ... + 1113260.

It is an arithmetic number, because the mean of its divisors is an integer number (2532165552).

Almost surely, 2^78936348660 is an apocalyptic number.

It is an amenable number.

78936348660 is an abundant number, since it is smaller than the sum of its proper divisors (164151544332).

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

78936348660 is a wasteful number, since it uses less digits than its factorization.

78936348660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153273 (or 2153271 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 60.

The spelling of 78936348660 in words is "seventy-eight billion, nine hundred thirty-six million, three hundred forty-eight thousand, six hundred sixty".