78488746000 has 80 divisors (see below), whose sum is σ = 216898081920. Its totient is φ = 26910422400.

The previous prime is 78488745977. The next prime is 78488746009. The reversal of 78488746000 is 64788487.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (78488746009) 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 15 ways as a sum of consecutive naturals, for example, 2789170 + ... + 2817169.

It is an arithmetic number, because the mean of its divisors is an integer number (2711226024).

Almost surely, 2^78488746000 is an apocalyptic number.

78488746000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78488746000 is an abundant number, since it is smaller than the sum of its proper divisors (138409335920).

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

78488746000 is a wasteful number, since it uses less digits than its factorization.

78488746000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606369 (or 5606353 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 78488746000 in words is "seventy-eight billion, four hundred eighty-eight million, seven hundred forty-six thousand".