78535919361 has 8 divisors (see below), whose sum is σ = 104796436480. Its totient is φ = 52316340912.

The previous prime is 78535919317. The next prime is 78535919381. The reversal of 78535919361 is 16391953587.

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

It is not a de Polignac number, because 78535919361 - 2⁹ = 78535918849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78535919381) 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, 10230190 + ... + 10237863.

It is an arithmetic number, because the mean of its divisors is an integer number (13099554560).

Almost surely, 2^78535919361 is an apocalyptic number.

It is an amenable number.

78535919361 is a deficient number, since it is larger than the sum of its proper divisors (26260517119).

78535919361 is a wasteful number, since it uses less digits than its factorization.

78535919361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469335.

The product of its digits is 6123600, while the sum is 57.

The spelling of 78535919361 in words is "seventy-eight billion, five hundred thirty-five million, nine hundred nineteen thousand, three hundred sixty-one".