78971783086080 has 1216 divisors, whose sum is σ = 295611297730560. Its totient is φ = 19976631091200.

The previous prime is 78971783086069. The next prime is 78971783086099. The reversal of 78971783086080 is 8068038717987.

78971783086080 is a `hidden beast` number, since 7 + 8 + 9 + 7 + 1 + 7 + 8 + 3 + 0 + 8 + 608 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53685779745 + ... + 53685781215.

It is an arithmetic number, because the mean of its divisors is an integer number (243101396160).

Almost surely, 2^{78971783086080} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78971783086080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147805648865280).

78971783086080 is an abundant number, since it is smaller than the sum of its proper divisors (216639514644480).

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

78971783086080 is an equidigital number, since it uses as much as digits as its factorization.

78971783086080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 72.

The spelling of 78971783086080 in words is "seventy-eight trillion, nine hundred seventy-one billion, seven hundred eighty-three million, eighty-six thousand, eighty".