78832740344272 has 40 divisors (see below), whose sum is σ = 154673226688640. Its totient is φ = 38917077937920.

The previous prime is 78832740344251. The next prime is 78832740344321. The reversal of 78832740344272 is 27244304723887.

It is a self number, because there is not a number n which added to its sum of digits gives 78832740344272.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 191974723 + ... + 192384925.

It is an arithmetic number, because the mean of its divisors is an integer number (3866830667216).

Almost surely, 2^{78832740344272} is an apocalyptic number.

It is an amenable number.

78832740344272 is a deficient number, since it is larger than the sum of its proper divisors (75840486344368).

78832740344272 is a wasteful number, since it uses less digits than its factorization.

78832740344272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562331 (or 562325 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 61.

The spelling of 78832740344272 in words is "seventy-eight trillion, eight hundred thirty-two billion, seven hundred forty million, three hundred forty-four thousand, two hundred seventy-two".