78732491364144 has 200 divisors, whose sum is σ = 230785526400000. Its totient is φ = 25908998753664.

The previous prime is 78732491364061. The next prime is 78732491364203. The reversal of 78732491364144 is 44146319423787.

It is a happy number.

78732491364144 is a `hidden beast` number, since 7 + 8 + 7 + 32 + 491 + 36 + 41 + 44 = 666.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1009364857 + ... + 1009442855.

It is an arithmetic number, because the mean of its divisors is an integer number (1153927632000).

Almost surely, 2^{78732491364144} 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 78732491364144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115392763200000).

78732491364144 is an abundant number, since it is smaller than the sum of its proper divisors (152053035035856).

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

78732491364144 is a wasteful number, since it uses less digits than its factorization.

78732491364144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87957 (or 87942 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 78732491364144 in words is "seventy-eight trillion, seven hundred thirty-two billion, four hundred ninety-one million, three hundred sixty-four thousand, one hundred forty-four".