78177004524213 has 16 divisors (see below), whose sum is σ = 123234686935680. Its totient is φ = 43132140426816.

The previous prime is 78177004524197. The next prime is 78177004524277. The reversal of 78177004524213 is 31242540077187.

It is not a de Polignac number, because 78177004524213 - 2⁴ = 78177004524197 is a prime.

It is a super-3 number, since 3×78177004524213³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78177004526213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64184732170 + ... + 64184733387.

It is an arithmetic number, because the mean of its divisors is an integer number (7702167933480).

Almost surely, 2^{78177004524213} is an apocalyptic number.

It is an amenable number.

78177004524213 is a deficient number, since it is larger than the sum of its proper divisors (45057682411467).

78177004524213 is a wasteful number, since it uses less digits than its factorization.

78177004524213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128369465596.

The product of its (nonzero) digits is 2634240, while the sum is 51.

The spelling of 78177004524213 in words is "seventy-eight trillion, one hundred seventy-seven billion, four million, five hundred twenty-four thousand, two hundred thirteen".