78760994698 has 4 divisors (see below), whose sum is σ = 118141492050. Its totient is φ = 39380497348.

The previous prime is 78760994681. The next prime is 78760994749. The reversal of 78760994698 is 89649906787.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77711040289 + 1049954409 = 278767^2 + 32403^2 .

It is a super-2 number, since 2×78760994698² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78760994698.

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 as a sum of consecutive naturals, namely, 19690248673 + ... + 19690248676.

Almost surely, 2^78760994698 is an apocalyptic number.

78760994698 is a deficient number, since it is larger than the sum of its proper divisors (39380497352).

78760994698 is a wasteful number, since it uses less digits than its factorization.

78760994698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39380497351.

The product of its (nonzero) digits is 329204736, while the sum is 73.

The spelling of 78760994698 in words is "seventy-eight billion, seven hundred sixty million, nine hundred ninety-four thousand, six hundred ninety-eight".