78507876802 has 8 divisors (see below), whose sum is σ = 118017265212. Its totient is φ = 39168788400.

The previous prime is 78507876787. The next prime is 78507876803. The reversal of 78507876802 is 20867870587.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75762012001 + 2745864801 = 275249^2 + 52401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78507876803) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42573849 + ... + 42575692.

Almost surely, 2^78507876802 is an apocalyptic number.

78507876802 is a deficient number, since it is larger than the sum of its proper divisors (39509388410).

78507876802 is a wasteful number, since it uses less digits than its factorization.

78507876802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85150004.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 78507876802 in words is "seventy-eight billion, five hundred seven million, eight hundred seventy-six thousand, eight hundred two".