78533188748782 has 8 divisors (see below), whose sum is σ = 117799907870952. Its totient is φ = 39266552791800.

The previous prime is 78533188748653. The next prime is 78533188748783. The reversal of 78533188748782 is 28784788133587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78533188748783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18374344 + ... + 22241467.

It is an arithmetic number, because the mean of its divisors is an integer number (14724988483869).

Almost surely, 2^{78533188748782} is an apocalyptic number.

78533188748782 is a deficient number, since it is larger than the sum of its proper divisors (39266719122170).

78533188748782 is a wasteful number, since it uses less digits than its factorization.

78533188748782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41582594.

The product of its digits is 4046192640, while the sum is 79.

The spelling of 78533188748782 in words is "seventy-eight trillion, five hundred thirty-three billion, one hundred eighty-eight million, seven hundred forty-eight thousand, seven hundred eighty-two".