78743546782 has 8 divisors (see below), whose sum is σ = 120862188216. Its totient is φ = 38456150712.

The previous prime is 78743546771. The next prime is 78743546809. The reversal of 78743546782 is 28764534787.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78743546782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457811233 + ... + 457811404.

It is an arithmetic number, because the mean of its divisors is an integer number (15107773527).

Almost surely, 2^78743546782 is an apocalyptic number.

78743546782 is a deficient number, since it is larger than the sum of its proper divisors (42118641434).

78743546782 is a wasteful number, since it uses less digits than its factorization.

78743546782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915622682.

The product of its digits is 63221760, while the sum is 61.

The spelling of 78743546782 in words is "seventy-eight billion, seven hundred forty-three million, five hundred forty-six thousand, seven hundred eighty-two".