78587306655315 has 64 divisors (see below), whose sum is σ = 129358139163264. Its totient is φ = 40723095748608.

The previous prime is 78587306655257. The next prime is 78587306655317. The reversal of 78587306655315 is 51355660378587.

78587306655315 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 78587306655315 - 2⁶ = 78587306655251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78587306655315.

It is not an unprimeable number, because it can be changed into a prime (78587306655317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103200399 + ... + 103959111.

It is an arithmetic number, because the mean of its divisors is an integer number (2021220924426).

Almost surely, 2^{78587306655315} is an apocalyptic number.

78587306655315 is a deficient number, since it is larger than the sum of its proper divisors (50770832507949).

78587306655315 is a wasteful number, since it uses less digits than its factorization.

78587306655315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760040.

The product of its (nonzero) digits is 635040000, while the sum is 69.

The spelling of 78587306655315 in words is "seventy-eight trillion, five hundred eighty-seven billion, three hundred six million, six hundred fifty-five thousand, three hundred fifteen".