78728759601 has 8 divisors (see below), whose sum is σ = 105205471200. Its totient is φ = 52368943872.

The previous prime is 78728759587. The next prime is 78728759633. The reversal of 78728759601 is 10695782787.

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

It is not a de Polignac number, because 78728759601 - 2⁹ = 78728759089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78728759701) 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, 29222395 + ... + 29225088.

It is an arithmetic number, because the mean of its divisors is an integer number (13150683900).

Almost surely, 2^78728759601 is an apocalyptic number.

It is an amenable number.

78728759601 is a deficient number, since it is larger than the sum of its proper divisors (26476711599).

78728759601 is a wasteful number, since it uses less digits than its factorization.

78728759601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58447935.

The product of its (nonzero) digits is 11854080, while the sum is 60.

The spelling of 78728759601 in words is "seventy-eight billion, seven hundred twenty-eight million, seven hundred fifty-nine thousand, six hundred one".