78564480001 has 16 divisors (see below), whose sum is σ = 90246240000. Its totient is φ = 66998063808.

The previous prime is 78564479963. The next prime is 78564480047. The reversal of 78564480001 is 10008446587.

It is a cyclic number.

It is not a de Polignac number, because 78564480001 - 2¹³ = 78564471809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78564480001.

It is not an unprimeable number, because it can be changed into a prime (78564480061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196575 + ... + 1260523.

It is an arithmetic number, because the mean of its divisors is an integer number (5640390000).

Almost surely, 2^78564480001 is an apocalyptic number.

It is an amenable number.

78564480001 is a deficient number, since it is larger than the sum of its proper divisors (11681759999).

78564480001 is a wasteful number, since it uses less digits than its factorization.

78564480001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64848.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 78564480001 in words is "seventy-eight billion, five hundred sixty-four million, four hundred eighty thousand, one".