78616402075 has 12 divisors (see below), whose sum is σ = 97491751200. Its totient is φ = 62888339360.

The previous prime is 78616402031. The next prime is 78616402079. The reversal of 78616402075 is 57020461687.

It is a happy number.

It is not a de Polignac number, because 78616402075 - 2⁷ = 78616401947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78616402079) 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 11 ways as a sum of consecutive naturals, for example, 236601 + ... + 461749.

It is an arithmetic number, because the mean of its divisors is an integer number (8124312600).

Almost surely, 2^78616402075 is an apocalyptic number.

78616402075 is a deficient number, since it is larger than the sum of its proper divisors (18875349125).

78616402075 is a wasteful number, since it uses less digits than its factorization.

78616402075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239126 (or 239121 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 78616402075 in words is "seventy-eight billion, six hundred sixteen million, four hundred two thousand, seventy-five".