78945120333511 has 8 divisors (see below), whose sum is σ = 78956417662304. Its totient is φ = 78933823436160.

The previous prime is 78945120333439. The next prime is 78945120333539. The reversal of 78945120333511 is 11533302154987.

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

It is a cyclic number.

It is not a de Polignac number, because 78945120333511 - 2¹¹ = 78945120331463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78945120333311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571968070 + ... + 572106076.

It is an arithmetic number, because the mean of its divisors is an integer number (9869552207788).

Almost surely, 2^{78945120333511} is an apocalyptic number.

78945120333511 is a deficient number, since it is larger than the sum of its proper divisors (11297328793).

78945120333511 is a wasteful number, since it uses less digits than its factorization.

78945120333511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215721.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 78945120333511 in words is "seventy-eight trillion, nine hundred forty-five billion, one hundred twenty million, three hundred thirty-three thousand, five hundred eleven".