78106878495 has 24 divisors (see below), whose sum is σ = 135539697696. Its totient is φ = 41609481408.

The previous prime is 78106878481. The next prime is 78106878511. The reversal of 78106878495 is 59487860187.

78106878495 is a `hidden beast` number, since 7 + 8 + 10 + 68 + 78 + 495 = 666.

It is not a de Polignac number, because 78106878495 - 2⁶ = 78106878431 is a prime.

It is a super-2 number, since 2×78106878495² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950107 + ... + 1029036.

It is an arithmetic number, because the mean of its divisors is an integer number (5647487404).

Almost surely, 2^78106878495 is an apocalyptic number.

78106878495 is a deficient number, since it is larger than the sum of its proper divisors (57432819201).

78106878495 is a wasteful number, since it uses less digits than its factorization.

78106878495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980031 (or 1980028 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 78106878495 in words is "seventy-eight billion, one hundred six million, eight hundred seventy-eight thousand, four hundred ninety-five".