78677414146 has 32 divisors (see below), whose sum is σ = 127328256000. Its totient is φ = 36347974992.

The previous prime is 78677414143. The next prime is 78677414171. The reversal of 78677414146 is 64141477687.

It is not an unprimeable number, because it can be changed into a prime (78677414143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146575 + ... + 422893.

It is an arithmetic number, because the mean of its divisors is an integer number (3979008000).

Almost surely, 2^78677414146 is an apocalyptic number.

78677414146 is a deficient number, since it is larger than the sum of its proper divisors (48650841854).

78677414146 is a wasteful number, since it uses less digits than its factorization.

78677414146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276526.

The product of its digits is 6322176, while the sum is 55.

The spelling of 78677414146 in words is "seventy-eight billion, six hundred seventy-seven million, four hundred fourteen thousand, one hundred forty-six".