78670884699 has 24 divisors (see below), whose sum is σ = 127316687472. Its totient is φ = 46390691520.

The previous prime is 78670884673. The next prime is 78670884713. The reversal of 78670884699 is 99648807687.

78670884699 is a `hidden beast` number, since 7 + 86 + 7 + 0 + 88 + 469 + 9 = 666.

It is not a de Polignac number, because 78670884699 - 2¹⁹ = 78670360411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78670882699) 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 23 ways as a sum of consecutive naturals, for example, 10734924 + ... + 10742249.

It is an arithmetic number, because the mean of its divisors is an integer number (5304861978).

Almost surely, 2^78670884699 is an apocalyptic number.

78670884699 is a deficient number, since it is larger than the sum of its proper divisors (48645802773).

78670884699 is a wasteful number, since it uses less digits than its factorization.

78670884699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21477227 (or 21477224 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 72.

It can be divided in two parts, 7867088 and 4699, that added together give a palindrome (7871787).

The spelling of 78670884699 in words is "seventy-eight billion, six hundred seventy million, eight hundred eighty-four thousand, six hundred ninety-nine".