78357835580 has 24 divisors (see below), whose sum is σ = 168998792928. Its totient is φ = 30496022208.

The previous prime is 78357835559. The next prime is 78357835583. The reversal of 78357835580 is 8553875387.

It is a happy number.

It is a super-3 number, since 3×78357835580³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78357835583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52943744 + ... + 52945223.

It is an arithmetic number, because the mean of its divisors is an integer number (7041616372).

Almost surely, 2^78357835580 is an apocalyptic number.

It is an amenable number.

78357835580 is an abundant number, since it is smaller than the sum of its proper divisors (90640957348).

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

78357835580 is a wasteful number, since it uses less digits than its factorization.

78357835580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105889013 (or 105889011 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 59.

The spelling of 78357835580 in words is "seventy-eight billion, three hundred fifty-seven million, eight hundred thirty-five thousand, five hundred eighty".