78878363298395 has 16 divisors (see below), whose sum is σ = 100231150986720. Its totient is φ = 59385297698304.

The previous prime is 78878363298323. The next prime is 78878363298407. The reversal of 78878363298395 is 59389236387887.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78878363298395 - 2³⁶ = 78809643821659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41805632 + ... + 43651661.

It is an arithmetic number, because the mean of its divisors is an integer number (6264446936670).

Almost surely, 2^{78878363298395} is an apocalyptic number.

78878363298395 is a deficient number, since it is larger than the sum of its proper divisors (21352787688325).

78878363298395 is a wasteful number, since it uses less digits than its factorization.

78878363298395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85468174.

The product of its digits is 26336378880, while the sum is 86.

The spelling of 78878363298395 in words is "seventy-eight trillion, eight hundred seventy-eight billion, three hundred sixty-three million, two hundred ninety-eight thousand, three hundred ninety-five".