78384882061 has 8 divisors (see below), whose sum is σ = 78888227264. Its totient is φ = 77881811040.

The previous prime is 78384882013. The next prime is 78384882083. The reversal of 78384882061 is 16028848387.

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 78384882061 - 2¹⁹ = 78384357773 is a prime.

It is a super-2 number, since 2×78384882061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78384881993 and 78384882011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78384882001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521281 + ... + 654601.

It is an arithmetic number, because the mean of its divisors is an integer number (9861028408).

Almost surely, 2^78384882061 is an apocalyptic number.

It is an amenable number.

78384882061 is a deficient number, since it is larger than the sum of its proper divisors (503345203).

78384882061 is a wasteful number, since it uses less digits than its factorization.

78384882061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137091.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 78384882061 in words is "seventy-eight billion, three hundred eighty-four million, eight hundred eighty-two thousand, sixty-one".