78031488780 has 96 divisors (see below), whose sum is σ = 277445306880. Its totient is φ = 17835768000.

The previous prime is 78031488767. The next prime is 78031488781. The reversal of 78031488780 is 8788413087.

78031488780 is a `hidden beast` number, since 7 + 80 + 3 + 1 + 488 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (78031488781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10317846 + ... + 10325405.

It is an arithmetic number, because the mean of its divisors is an integer number (2890055280).

Almost surely, 2^78031488780 is an apocalyptic number.

78031488780 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78031488780 is an abundant number, since it is smaller than the sum of its proper divisors (199413818100).

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

78031488780 is a wasteful number, since it uses less digits than its factorization.

78031488780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20643276 (or 20643268 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 54.

The spelling of 78031488780 in words is "seventy-eight billion, thirty-one million, four hundred eighty-eight thousand, seven hundred eighty".