78688418127 has 16 divisors (see below), whose sum is σ = 114543918720. Its totient is φ = 47653268000.

The previous prime is 78688418101. The next prime is 78688418131. The reversal of 78688418127 is 72181488687.

It is a cyclic number.

It is not a de Polignac number, because 78688418127 - 2⁷ = 78688417999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78688418147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 873477 + ... + 959342.

It is an arithmetic number, because the mean of its divisors is an integer number (7158994920).

Almost surely, 2^78688418127 is an apocalyptic number.

78688418127 is a deficient number, since it is larger than the sum of its proper divisors (35855500593).

78688418127 is a wasteful number, since it uses less digits than its factorization.

78688418127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834134.

The product of its digits is 9633792, while the sum is 60.

The spelling of 78688418127 in words is "seventy-eight billion, six hundred eighty-eight million, four hundred eighteen thousand, one hundred twenty-seven".