78333320380 has 24 divisors (see below), whose sum is σ = 187999969248. Its totient is φ = 26857138368.

The previous prime is 78333320371. The next prime is 78333320383. The reversal of 78333320380 is 8302333387.

It is a happy number.

It is a super-2 number, since 2×78333320380² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78333320383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 279761719 + ... + 279761998.

It is an arithmetic number, because the mean of its divisors is an integer number (7833332052).

Almost surely, 2^78333320380 is an apocalyptic number.

78333320380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78333320380 is an abundant number, since it is smaller than the sum of its proper divisors (109666648868).

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

78333320380 is a wasteful number, since it uses less digits than its factorization.

78333320380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559523733 (or 559523731 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 78333320380 in words is "seventy-eight billion, three hundred thirty-three million, three hundred twenty thousand, three hundred eighty".