78699372480 has 84 divisors (see below), whose sum is σ = 270693059832. Its totient is φ = 20986498560.

The previous prime is 78699372463. The next prime is 78699372491. The reversal of 78699372480 is 8427399687.

78699372480 is a `hidden beast` number, since 7 + 8 + 69 + 93 + 7 + 2 + 480 = 666.

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 11 ways as a sum of consecutive naturals, for example, 13660206 + ... + 13665965.

Almost surely, 2^78699372480 is an apocalyptic number.

It is an amenable number.

78699372480 is an abundant number, since it is smaller than the sum of its proper divisors (191993687352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78699372480 is a wasteful number, since it uses less digits than its factorization.

78699372480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27326194 (or 27326181 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 78699372480 in words is "seventy-eight billion, six hundred ninety-nine million, three hundred seventy-two thousand, four hundred eighty".