78463013547811 has 4 divisors (see below), whose sum is σ = 78901354405800. Its totient is φ = 78024672689824.

The previous prime is 78463013547797. The next prime is 78463013547817. The reversal of 78463013547811 is 11874531036487.

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

It is a cyclic number.

It is not a de Polignac number, because 78463013547811 - 2⁷ = 78463013547683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78463013547817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219170428726 + ... + 219170429083.

It is an arithmetic number, because the mean of its divisors is an integer number (19725338601450).

Almost surely, 2^{78463013547811} is an apocalyptic number.

78463013547811 is a deficient number, since it is larger than the sum of its proper divisors (438340857989).

78463013547811 is a wasteful number, since it uses less digits than its factorization.

78463013547811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438340857988.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 78463013547811 in words is "seventy-eight trillion, four hundred sixty-three billion, thirteen million, five hundred forty-seven thousand, eight hundred eleven".