78553608312 has 32 divisors (see below), whose sum is σ = 196839694080. Its totient is φ = 26123779680.

The previous prime is 78553608299. The next prime is 78553608317. The reversal of 78553608312 is 21380635587.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78553608317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3786718 + ... + 3807405.

It is an arithmetic number, because the mean of its divisors is an integer number (6151240440).

Almost surely, 2^78553608312 is an apocalyptic number.

It is an amenable number.

78553608312 is an abundant number, since it is smaller than the sum of its proper divisors (118286085768).

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

78553608312 is a wasteful number, since it uses less digits than its factorization.

78553608312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594563 (or 7594559 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 78553608312 in words is "seventy-eight billion, five hundred fifty-three million, six hundred eight thousand, three hundred twelve".