78936171459 has 8 divisors (see below), whose sum is σ = 105252973392. Its totient is φ = 52621741920.

The previous prime is 78936171437. The next prime is 78936171467. The reversal of 78936171459 is 95417163987.

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

It is not a de Polignac number, because 78936171459 - 2⁵ = 78936171427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78936171359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513952 + ... + 649629.

It is an arithmetic number, because the mean of its divisors is an integer number (13156621674).

Almost surely, 2^78936171459 is an apocalyptic number.

78936171459 is a deficient number, since it is larger than the sum of its proper divisors (26316801933).

78936171459 is a wasteful number, since it uses less digits than its factorization.

78936171459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186197.

The product of its digits is 11430720, while the sum is 60.

The spelling of 78936171459 in words is "seventy-eight billion, nine hundred thirty-six million, one hundred seventy-one thousand, four hundred fifty-nine".